Parts mounting equipment

Abstract

To provide a component mounting device in which an improvement in workability of component supply by workers can be achieved.SOLUTION: A component mounting device including a head unit which takes out a component stored in a tray and mounts the component on a substrate, includes: a stocker which is movable on an installation surface of the component mounting device and is capable of holding a pallet where the tray is placed; a holding part which holds the stocker detachably; and a pallet moving part which pulls the pallet out of the stocker to move, by the head unit, to a take-out position where the component can be taken out, or inserts the pallet in the take-out position into an insertion position where the pallet of the stocker is not inserted.SELECTED DRAWING: Figure 5

Description

[Technical field]

[0001] The present disclosure relates to a component mounting device. [Background technology]

[0002] Conventionally, an electronic component supplying device that stores pallets in multiple stages has been proposed (see, for example, Patent Document 1) that reduces the burden on an operator in handling the pallets of the electronic component supplying device. Also, a tray replacement method for a tray feeder that improves productivity by shortening the device downtime for tray replacement in a component mounting device that mounts components supplied by a tray feeder onto a board (see, for example, Patent Document 2) has been proposed. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Publication No. 10-261893 [Patent Document 2] JP 2012-114324 A Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, currently, the most common method of supplying components to a tray feeder is to mount the trays containing the components on a plate called a pallet, set a large number of these pallets in a tray magazine, and then set the tray magazine in the magazine holding section (component stock section) in the tray feeder. However, in this case, the tray magazine with the trays set in it can be heavy (for example, up to about 20 kg), which places a considerable burden on the worker when transporting it to the component mounting device as part of the facility and when setting the tray magazine in the tray feeder.

[0005] The present disclosure has been devised in view of the above-mentioned conventional situation, and has an object to provide a component mounting device that improves the workability of a worker in supplying components. [Means for solving the problem]

[0006] The present disclosure relates to a component mounting device having a head unit that removes components stored in a tray and mounts them on a board, the component mounting device including a stocker that is movable on an installation surface of the component mounting device and that can hold a pallet on which the tray is placed, a holding section that detachably holds the stocker, and a pallet moving section that pulls out the pallet from the stocker and moves it to a removal position where the components can be removed by the head unit, or inserts the pallet at the removal position into an insertion position of the stocker where the pallet is not inserted, the stocker having a magazine that stores the pallet, and a stocker main body section that stores the magazine. ,before The holding portion includes a plurality of cam followers provided on outer wall surfaces on both sides of the magazine; Stocker body and a plurality of guides provided on inner wall surfaces on both sides of the cam follower, each of the cam followers is placed on a respective one of the guides arranged in a one-to-one correspondence, and the pallet is positioned in the pallet moving section. Effect of the Invention

[0007] According to the present disclosure, in a component mounting device, it is possible to improve the workability of an operator in supplying components. [Brief description of the drawings]

[0008] [Figure 1] FIG. 1 is an exploded side view showing a schematic configuration example of a component mounting device according to a first embodiment; [Diagram 2] FIG. 2 is a side view of the component mounting device shown in FIG. 1 in a stocker-mounted state; [Diagram 3] A rear view of the component mounting device shown in Figure 2, seen from the Y direction. [Figure 4] Perspective view of magazine with pallets pulled out [Diagram 5] A rear view of the component mounting device with the holding unit, seen from the Y direction [Figure 6] FIG. 6 is a side view of the component mounting device shown in FIG. [Figure 7] A side view of the pallet moving section with the stocker detection sensor visible [Figure 8] FIG. 8 is a plan view of the component mounting device shown in FIG. [Figure 9] Enlarged view of part A near the stocker detection sensor shown in Figure 8 [Figure 10] Block diagram showing the configuration of the control system of the component mounting device [Figure 11] FIG. 11 is a rear view of the component mounting device according to the second embodiment before the stocker is mounted; [Figure 12] A rear view of the component mounting device shown in FIG. 11 after the stocker is installed. [Figure 13] 13 is a side view of the component mounting device shown in FIG. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0009] Hereinafter, with reference to the drawings as appropriate, an embodiment specifically disclosing a component mounting device according to the present disclosure will be described in detail. However, more detailed explanation than necessary may be omitted. For example, detailed explanation of already well-known matters or duplicate explanation of substantially the same configuration may be omitted. This is to avoid the following explanation becoming unnecessarily redundant and to facilitate understanding by those skilled in the art. Note that the attached drawings and the following explanation are provided to enable those skilled in the art to fully understand the present disclosure, and are not intended to limit the subject matter described in the claims.

[0010] 1 is an exploded side view showing a schematic configuration example of component mounting device 11 according to embodiment 1. In the figure with arrows indicating directions, the X-axis indicates the left-right direction of component mounting device 11, the Y-axis indicates the front-rear direction of component mounting device 11, and the Z-axis indicates the up-down direction of component mounting device 11. The X-axis and Y-axis are orthogonal to each other and are included in a horizontal plane. The Z-axis is included in a vertical plane.

[0011] The component mounting device 11 according to the first embodiment has as its main components a stocker 13, a holding unit (see below), and a pallet moving unit (e.g., tray feeder 15). Although details will be described later, the holding unit is a mechanism for detachably holding the stocker 13 to the tray feeder 15, and specifically has a lower-stage cam follower 17 (see FIG. 6), an upper-stage cam follower 19 (see FIG. 6), a lower-stage guide 21 (see FIG. 6), and an upper-stage guide 23 (see FIG. 6).

[0012] Incidentally, the component mounting device 11 may be configured with the tray feeder 15 as one of its constituent elements (in other words, as a part) of the component mounting device 11. Also, the tray feeder 15 may be configured as a separate body from the component mounting device 11, in which case the tray feeder 15 can be configured to be integrally connected to the component mounting device 11.

[0013] The component mounting device 11 includes a head unit (not shown) that takes out a plurality of components (for example, electronic components that are mounted (installed) at a predetermined position on a board by the component mounting device 11, which is determined for each component) stored in a tray 25 (see FIG. 4) and mounts (installs) the components on a board (not shown). The board is transported by a board transport mechanism (not shown). The board transport mechanism is disposed on the side of the tray feeder 15 on the Y direction side. The component mounting device 11 includes a linear motor-driven Y-axis moving table (not shown) disposed in the Y direction. The Y-axis moving table is connected to an X-axis moving table (not shown) so as to be movable in the Y direction. A head unit (not shown) is attached to the X-axis moving table so as to be movable in the X direction by a linear drive mechanism. The head unit is a multiple head equipped with a plurality of unit transfer heads (not shown), and a suction nozzle is attached to the lower end of each unit transfer head in a replaceable manner. The X-axis moving table, the Y-axis moving table, and the head unit constitute a component mounting mechanism 27 (see FIG. 10) of the component mounting device 11.

[0014] By driving the Y-axis moving table and the X-axis moving table, respectively, the component mounting device 11 moves the head unit horizontally between the tray feeder 15 and the board held by the board transport mechanism, and uses the suction nozzle to suction and hold the components stored on the tray 25 on the pallet 29 that has been moved to the component removal position (see below), and mounts them on the board.

[0015] Stocker 13 is capable of holding pallets 29 on which trays 25 are placed and transported. In the first embodiment, stocker 13 has a configuration including a magazine 31 that holds pallets 29, and a stocker main body 33 that stores magazines 31. Stocker main body 33 stores a plurality of magazines 31 (two in the example of FIG. 1) spaced apart in the vertical direction in multiple tiers. Stocker main body 33 has a plurality of magazine support parts 35 (e.g., two) (see FIG. 5) in the magazine storage space for supporting the plurality of magazines 31 in multiple tiers.

[0016] The magazine support portion 35 is formed in a shelf shape on which the magazines 31 are placed. Each magazine 31 is placed on the magazine support portion 35 and can be moved smoothly in the front-rear direction (in other words, taken in and out). In addition, by being placed on the magazine support portion 35, the magazine 31 can float up from the magazine support portion 35 within a range of the interval above and below the magazine support portion 35. This floating distance is necessary when positioning the magazine 31, which will be described later.

[0017] The stocker main body 33 has an outer shell formed into a vertically long rectangular parallelepiped shape by a frame or an outer plate or the like. On the underside of a base 37 that supports the stocker main body 33 from below, two pairs of wheels 39 spaced apart in the left-right direction and spaced apart in the front-rear direction are provided. That is, a total of four wheels 39 are fixed to the four corners of the rectangular underside of the base 37. The front pair of wheels 39 or the rear pair may be rotatable about a rotation axis in the Z direction to ensure steerability. The stocker main body 33 can be moved by running in any direction on the installation surface, for example, by being pushed or pulled by an operator.

[0018] In stocker 13, the extending direction of magazine support portion 35 is the front-rear direction, and stocker 13 is basically moved in this front-rear direction. Stocker 13 has a stocker front opening (not shown) so that magazine 31 can be freely inserted and removed from the front, for example. Stocker 13 may also have a stocker rear opening (not shown) at the rear so that magazine 31 can be inserted and removed. Stocker 13 is provided with a magazine stopper (not shown) to prevent magazine 31 from jumping out of the stocker front opening due to inertial force when stocker 13 is moved.

[0019] In tray feeder 15, the outer shell of feeder body 41 is formed by a frame or outer plate. This outer shell is formed, for example, in an inverted L shape as shown in FIG. 1 in side view. That is, a rectangular portion including the upper left corner having a rectangular shape in side view is cut out. The lower part of this cutout portion becomes a pair of extending side plate portions 43 provided on the left and right of tray feeder 15. In tray feeder 15, the portion between these cutout portions and the pair of extending side plate portions 43 becomes stocker mounting portion 45, which is a vertically long space.

[0020] The outer shell shape of tray feeder 15 formed in an inverted L-shape in side view is just one example, and the pair of extending side plate portions 43 may be formed at the same height as feeder main body portion 41. In this case, the outer shell shape of tray feeder 15 is a vertically long rectangle in side view. However, even if tray feeder 15 has this rectangular outer shell shape in side view, stocker attachment portion 45 is still formed between the pair of extending side plate portions 43.

[0021] In the tray feeder 15, two pairs of wheels 39 are provided on the underside of the feeder body 41 and the pair of extending side plate portions 43, which are spaced apart in the left-right direction and in the front-rear direction. That is, the tray feeder 15 has a total of four wheels 39 fixed to each of the four corners of the outer shape of its rectangular underside. The front pair of wheels 39 or the rear pair of wheels 39 may be rotatable around a rotation axis in the Z direction to ensure maneuverability. The tray feeder 15 is installed at a predetermined position on the installation surface 47, with the rotation and turning of each wheel 39 restricted by a stopper. The tray feeder 15 is further positioned horizontally via an adjuster or the like, and then connected to the device body of the component mounting device 11 that has already been positioned relative to the installation surface 47.

[0022] Fig. 2 is a side view of the stocker mounted state of the component mounting device 11 shown in Fig. 1. In the component mounting device 11, the stocker 13, in which a plurality of magazines 31 are stored in multiple stages, is moved in the Y direction by an operator and mounted on the stocker mounting section 45 of the tray feeder 15. The stocker 13 mounted on the stocker mounting section 45 is connected to the feeder main body 41 by a connecting mechanism (not shown) having a locking mechanism 49 (see Fig. 10) so as to be prevented from being removed from the feeder main body 41.

[0023] Fig. 3 is a rear view of the component mounting device 11 shown in Fig. 2 as viewed from the Y direction. The stocker 13 connected to the feeder main body 41 accommodates a plurality of pallets 29 (one representative pallet is shown in the example of Fig. 3) on which trays 25 are placed in each magazine 31. The magazine 31 has a plurality of parallel pallet support rails 53 (see Fig. 4) extending in the front-rear direction and spaced apart in the up-down direction on the opposing inner surfaces of a pair of parallel side plate portions 51 (see Fig. 4). In each magazine 31, a pair of parallel sides along the front-rear direction of the pallet 29 are supported by the pallet support rails 53.

[0024] FIG. 4 is a perspective view of the magazine 31 with the pallet 29 pulled out. The magazine 31 has a flat rectangular parallelepiped shape. A pair of parallel faces of the magazine 31 open as a pallet entrance / exit opening 55. The magazine 31 has a pair of side plate portions 51 on the left and right sides sandwiching the pallet entrance / exit opening 55. The pair of side plate portions 51 are connected at their upper sides by an upper crosspiece 57 and connected at their lower sides by a bottom plate portion 59 to form a box shape. Pallet support rails 53 extending toward the pallet entrance / exit opening 55 are provided in multiple stages spaced apart from each other vertically on the inner opposing surfaces of the pair of side plate portions 51. The pallet support rails 53 support the pair of parallel sides of the pallet 29 from below so that the pallet 29 accommodated inside the magazine 31 can be inserted and removed from the pallet entrance / exit opening 55.

[0025] The magazine 31 has a pallet shutter 61 that rotates around the Z axis and is provided on one of a pair of side plate parts 51 that sandwich the pallet entrance / exit opening 55. The pallet shutter 61 is rotated and disposed on one end side in the swing direction, so that it protrudes into the insertion / exit path of the pallet 29 and regulates the insertion and removal of the pallet 29. The pallet shutter 61 protrudes into the insertion / exit path, so that it can regulate the held pallet 29 from jumping out of the magazine 31. The pallet shutter 61 is rotated and disposed on the other end side in the swing direction, so that it is moved to a position retracted from the insertion / exit path of the pallet 29, so that the pallet 29 can be inserted and removed. The pallet shutter 61 is operated manually or by an actuator (not shown). The actuator (not shown) can be controlled to operate by a control unit 65 (see FIG. 10) that receives a signal from a stocker detection sensor 63 (see FIG. 10).

[0026] Pallets 29 housed in magazine 31 are formed in a rectangular shape in a plan view. Pallets 29 have a pair of parallel sides, one of which is a first side 67 and the other of which is a second side (not shown). Pallets 29 are transported (taken in and out) with either the first side 67 or the second side at the leading end in the transport direction.

[0027] Pallet 29 is made of a magnetic material at least in its upper surface. Tray 25 made of a non-magnetic material such as resin is placed on the upper surface of pallet 29. A plurality of parts are arranged in an aligned state on tray 25. Tray 25 is placed in a predetermined position on pallet 29 by a positioning device.

[0028] Two tray positioning pieces 69, which are parallel to a first side 67 and an adjacent side, are fixed perpendicularly to the upper surface of the pallet 29. The two tray positioning pieces 69 are arranged in the perpendicular direction to form an inside corner. The tray 25 is positioned relative to the pallet 29 by pressing two side surfaces against the tray positioning pieces 69 so that one corner coincides with the inside corner of the pallet 29.

[0029] The tray 25 on the pallet thus positioned is fixed to the pallet 29 by pressing a positioning device (not shown) against the surface opposite to the surface pressed against the tray positioning piece 69. The positioning device has a magnet. The positioning device is fixed to the upper surface of the pallet 29 made of a magnetic material by magnetic force. As a result, the tray 25 is fixed and its movement on the pallet is restricted. At this time, the two lever portions of the positioning device are positioned above the upper surface of the pallet 29. By pressing the lever portions toward the upper surface of the pallet 29, the positioning device can be easily removed from the pallet 29 by using the principle of leverage.

[0030] Pallet 29 is also provided with an engagement portion (not shown) on first side 67. The engagement portion is arranged, for example, so that the open sides of engagement claws formed in a U-shape in plan view face each other. The engagement portion engages with an engagement rod of a pallet conveying device (not shown) provided in tray feeder 15. Pallet 29 can be pulled out from magazine 31 to feeder main body 41 or inserted from feeder main body 41 to magazine 31 by engaging the engagement portion with the engagement rod (not shown).

[0031] Tray feeder 15 pulls out pallet 29 from stocker 13 and moves pallet 29 to a take-out position where parts can be taken out by the head unit. Tray feeder 15 also enables pallet 29 in the take-out position to be inserted into an insertion position of stocker 13 where no pallet 29 has been inserted.

[0032] Tray feeder 15 is provided with the above-mentioned pallet transport device on the front side (Y direction side) of stocker 13. The pallet transport device includes a lift table (not shown) on which pallets 29 are pulled out from magazines 31 stored in stocker 13 and placed. The lift table moves pallet 29 between two positions: a take-out position where pallet 29 can be taken out in the Y direction from the front side of stocker 13, and a component take-out position where components can be taken out by the head unit.

[0033] By specifying a storage address assigned to each magazine 31, the tray feeder 15 can position the lift table at a height position of the pallet 29 that corresponds to this storage address. This enables the tray feeder 15 to pull out the pallet 29 on which the tray 25 storing the desired parts is placed.

[0034] 5 is a rear view of the component mounting device 11 provided with a holder, as viewed from the Y direction. The component mounting device 11 has a holder that detachably holds the stocker 13.

[0035] The holding section is provided in either the magazine 31 or the stocker main body 33. In the first embodiment, the holding section is provided across the magazine 31 and the pallet moving section.

[0036] In the first embodiment, the holding section is composed of a plurality of cam followers provided on the magazine 31 and a plurality of guides provided on the stocker body 33. The cam followers are provided on the side plate 51 on both sides of the magazine 31. The guides are provided on the inner wall surfaces of the support brackets 71 (see FIG. 6) on both sides that are provided on the stocker body 33 and protrude from the feeder body 41 in the direction along the Y direction. The cam followers provided on the magazine 31 are arranged in a one-to-one correspondence with the guides. The cam followers of the magazine 31 are placed on the guides so as to be supported by the guides. The magazine 31 is placed on the magazine support 35 and can float up from the magazine support 35 within the range of the interval above and below the magazine support 35. Within this range of the floating distance, the guides are displaced upward by a distance C (see FIG. 6) and the magazine 31 can ride up on the guides. As a result, in the stocker 13 , each magazine 31 is positioned, and each pallet 29 accommodated in the magazine 31 is positioned relative to the tray feeder 15 .

[0037] Fig. 6 is a side view of component mounting device 11 shown in Fig. 5. More specifically, the cam followers are composed of a pair of lower-stage cam followers 17 provided on both sides of magazine 31, and a pair of upper-stage cam followers 19 provided on both sides of magazine 31 at a position higher than the pair of lower-stage cam followers 17.

[0038] The guide also has a pair of lower-stage guides 21 on which the pair of lower-stage cam followers 17 are placed, and a pair of upper-stage guides 23 on which the pair of upper-stage cam followers 19 are placed. The lower-stage guides 21 and the upper-stage guides 23 have inclined surfaces 73 that slope upward in the Y direction at the protruding tips that protrude toward the magazine 31. Each inclined surface 73 serves as a guide surface when the cam followers ride up onto the mounting surface (i.e., the reference surface) of the guide.

[0039] Here, the pair of upper-stage cam followers 19 are disposed further back in the stocker mounting direction (Y direction side) than the pair of lower-stage cam followers 17. The lower-stage cam followers 17 and the upper-stage cam followers 19 simultaneously ride up onto the lower-stage guide 21 and the upper-stage guide 23. Therefore, the upper-stage guide 23 has an inclined surface 73 disposed further back in the stocker mounting direction than the lower-stage guide 21.

[0040] Furthermore, a pair of left-right guides 75 are provided between the upper-stage guide 23 and the lower-stage guide 21 on the inner wall surfaces of the support brackets 71 on both sides of the stocker main body 33. This restricts the movement of the magazine 31 in the left-right direction (X direction) as well, thereby positioning the magazine 31.

[0041] The stocker 13 can be positioned in the front and rear positions in the insertion direction of the magazine 31 by the above-mentioned connecting mechanism. As a result, when the stocker 13 is attached to the feeder main body 41, the pallet 29 is positioned in the up / down, left / right, front / rear directions (ZXY directions) relative to the tray feeder 15. The pair of lower-stage cam followers 17 and the pair of upper-stage cam followers 19, the pair of lower-stage guides 21 and upper-stage guides 23, and the pair of left / right direction guides 75 are provided in accordance with each magazine 31.

[0042] When stocker 13 is positioned in the up / down, left / right, front / rear directions (ZXY directions) by the cam follower and each guide, the fact that it has been mounted in stocker mounting section 45 is detected by stocker detection sensor 63 (see FIG. 7). Stocker detection sensor 63 sends a mounting completion signal for stocker 13 to control section 65 (see FIG. 10) of component mounting device 11. When control section 65 receives the mounting completion signal for stocker 13 from stocker detection sensor 63, it outputs a control signal to lock locking mechanism 49 (see FIG. 10) provided in feeder main body 41. As a result, stocker 13 is restricted from being removed from stocker mounting section 45 and is in a locked state. Locking mechanism 49 is unlocked by an unlock signal from control section 65.

[0043] 7 is a side view of the pallet moving part seen through the stocker detection sensor 63. The tray feeder 15 is equipped with the stocker detection sensor 63. The stocker detection sensor 63 is attached, for example, to the inner surface of one of the extending side plates 43 extending from the feeder main body 41. Note that the attachment position of the stocker detection sensor 63 is not limited thereto.

[0044] Fig. 8 is a plan view of component mounting device 11 shown in Fig. 7. Stocker detection sensor 63 detects whether stocker 13 is at a position of a holding section where pallet 29 can be pulled out from stocker 13. The position of the holding section where pallet 29 can be pulled out refers to a position where pallet 29 is positioned with respect to tray feeder 15 via magazine 31 by lower-stage cam follower 17, upper-stage cam follower 19, lower-stage guide 21, upper-stage guide 23 and left-right guide 75.

[0045] Fig. 9 is an enlarged view of part A near the stocker detection sensor shown in Fig. 8. Stocker detection sensor 63 has a swing arm 79 that swings around a swing shaft 77 in the Z-axis direction. A rotator 81 that rotates about a rotation center in the same direction as swing shaft 77 is provided at the tip of swing arm 79. When stocker 13 is inserted to a predetermined depth into stocker mounting portion 45 of feeder main body 41, swing arm 79 of stocker detection sensor 63 is swung at a predetermined angle in the clockwise direction of arrow B via rotator 81 that is pressed against the side surface of stocker 13. When swing arm 79 is swung at the predetermined angle, stocker detection sensor 63 outputs a detection signal indicating that stocker 13 has been mounted in the correct position.

[0046] When stocker 13 is inserted into stocker mounting portion 45 to a predetermined depth, magazine 31 is positioned by the above-mentioned guides, and as a result, each pallet 29 is positioned relative to feeder main body 41.

[0047] 10 is a block diagram showing the configuration of a control system of component mounting device 11. Component mounting device 11 further includes a control unit 65 that controls tray feeder 15 not to operate when stocker 13 is not held in the holding unit. Control unit 65 can be provided together with storage unit 85 in control device 83 such as a PC (Personal Computer).

[0048] The control unit 65 has a component mounting control unit 87, a stocker detection and determination unit 89, a tray component supply control unit 91, a lock mechanism control unit 93, and a memory unit 85. The memory unit 85 includes a component mounting number memory unit 95 and a component mounting information memory unit 97.

[0049] The component placement control unit 87 controls the board transport mechanism (not shown) and the component placement mechanism 27 based on the placement information in the component placement information storage unit 97, and controls the placement of components on the board by the head unit.

[0050] Stocker detection and judgment unit 89 checks whether stocker 13 is in the pallet insertion / removal position (for example, stocker 13 is connected to stocker mounting unit 45 of feeder main body 41). Tray feeder 15 is able to insert and remove pallets 29 from stocker 13 when stocker 13 is in the pallet insertion / removal position.

[0051] If the stocker detection and determination unit 89 confirms that the stocker 13 is at the pallet insertion / removal position, the tray component supply control unit 91 causes the tray feeder 15 to insert or remove the pallet 29 .

[0052] If the lock mechanism control unit 93 detects that the stocker 13 is at the pallet insertion / removal position, it activates the lock mechanism 49 to prevent the stocker 13 from moving away from the mounting device. In addition, when the designated number of components have been mounted and it becomes necessary to replace the magazine 31, the lock mechanism control unit 93 outputs a signal to release the lock of the lock mechanism 49.

[0053] The component mounting quantity memory unit 95 sequentially stores the quantity of components consumed and reduced by the head unit. This stored quantity of components becomes a flag that releases the lock mechanism 49 when the parts stored in the tray 25 of the pallet 29 held in the magazine 31 become empty (i.e., when the stored quantity is zero).

[0054] The component mounting information memory unit 97 stores information (e.g., storage address, etc.) regarding the type and number of components, the type of board corresponding to the components, the component mounting position on the board, the tray 25 in which the components are stored, the pallet 29 on which the tray 25 is placed, and the magazine 31 in which the pallet 29 is housed.

[0055] Next, the operation of the component mounting device 11 according to the first embodiment will be described.

[0056] Component mounting device 11 according to the first embodiment includes a head unit that picks up components stored in tray 25 and mounts them on a board. Component mounting device 11 includes stocker 13 that is movable on installation surface 47 and can hold pallet 29 on which tray 25 is placed, a holding unit that detachably holds stocker 13, and a pallet moving unit (e.g., tray feeder 15) that pulls out pallet 29 from stocker 13 and moves it to a take-out position where components can be taken out by the head unit, or inserts pallet 29 at the take-out position into an insertion position of stocker 13 where no pallet 29 is inserted.

[0057] In component mounting device 11 according to the first embodiment, a head unit picks up components stored in tray 25 and mounts them on a board. Tray 25 storing the components is placed on pallet 29. Component mounting device 11 pulls out pallet 29 from stocker 13 by tray feeder 15 and moves it to a removal position where the components can be removed.

[0058] Stocker 13 can mount multiple pallets 29 in multiple stages. Stocker 13 has wheels 39 that can move on installation surface 47 on which component mounting device 11 is installed. Stocker 13 is detachably connected to the holding section of component mounting device 11 by moving along installation surface 47 and pushing or pulling out the stocker 13. When there is an insertion position where a pallet 29 is not inserted, stocker 13 held in the holding section can insert a pallet 29 by tray feeder 15.

[0059] Tray feeder 15 sequentially moves pallets 29 carrying trays 25 storing parts to the removal position and replaces them. When all parts on trays 25 placed on tray feeder 15 are consumed by the loading operation of the head unit after moving pallet 29 to the removal position, tray feeder 15 inserts the now empty pallet 29 into the insertion position of stocker 13 where no pallet 29 is inserted.

[0060] In the stocker 13, the parts on the trays 25 placed on the pallets 29 are consumed one after another, and when all the parts are removed from the trays 25 of the pallets 29, the stocker 13 is pulled out from the holding section and detached. After being detached from the holding section, the stocker 13 is moved along the installation surface 47 and conveyed to a pre-setup position where parts can be supplied, and an operator replaces the pallet 29 with a new pallet 29 on which the trays 25 storing the parts are placed. In the first embodiment, this replacement can be performed on a magazine-by-magazine basis.

[0061] The stocker 13 loaded with the new pallet 29 is transported along the installation surface 47 and is again pushed into and attached to the holding portion of the component mounting device 11. If multiple stockers 13 are provided, the supply of components to this stocker 13 can be completed simply by attaching and detaching the stocker 13 to and from the tray feeder 15.

[0062] In a conventional component mounting device, when replacing a magazine, an operator would first open the door of the magazine holding section, and then insert and remove the magazines 31 one by one directly from the magazine holding section to perform the replacement work.

[0063] In contrast, in the component mounting device 11 according to the first embodiment, the supply unit and magazine holding unit, which are integrally configured in the conventional component mounting device, are separated from the component mounting device and configured as a stocker 13. This stocker 13 can store a plurality of magazines 31 each holding a plurality of pallets 29, or can directly mount a plurality of pallets 29 (see below). In addition, the stocker 13 is provided with wheels 39 and also functions as a magazine transport cart. This allows the stocker 13 to hold a plurality of pallets 29 in advance in a plurality of magazines 31 at another location, or to directly mount a plurality of pallets 29 (see below). In other words, the component mounting device 11 can easily realize pre-arrangement for the supply work of the pallets 29.

[0064] As a result, since component mounting device 11 can collectively mount multiple magazines 31 on the holding section, the labor required for replacing pallets can be significantly reduced compared to conventional devices that individually replace multiple magazines 31. Also, since multiple magazines 31 can be collectively replaced, the downtime due to magazine replacement work can be significantly reduced compared to conventional devices that individually replace multiple magazines 31. Therefore, component mounting device 11 according to embodiment 1 can improve the workability of component supply by workers.

[0065] In component mounting device 11, stocker 13 has magazine 31 that holds pallets 29 and stocker body 33 that houses magazine 31, and the holder is provided in either magazine 31 or stocker body 33.

[0066] In this component mounting device 11, the stocker 13 stores a plurality of magazines 31 in the stocker body 33 and can move on the installation surface 47.

[0067] As described above, the holding section detachably holds the stocker 13. Here, the stocker 13 held by the holding section needs to be disposed in a relative position that allows the pallet 29 held in the magazine 31 to be inserted or removed by the tray feeder 15. This is because, when the tray feeder 15 inserts or removes the pallet 29 held in the stocker 13, if there is a positional deviation from the correct position, the pallet 29 will interfere with a step or the like, preventing smooth movement of the pallet 29.

[0068] As a result, each pallet 29 held in the magazine 31 of the stocker main body 33 is positioned, via the magazine 31 or the stocker main body 33, at a position that allows smooth insertion and removal when the stocker 13 is attached to the tray feeder 15.

[0069] In component mounting device 11, the holding section is composed of a plurality of cam followers (e.g., lower tier side cam follower 17 and upper tier side cam follower 19) provided on the outer wall surfaces on both sides of magazine 31, and a plurality of guides (e.g., lower tier side guide 21 and upper tier side guide 23) provided on the inner wall surfaces on both sides of tray feeder 15. Pallet 29 is positioned in tray feeder 15 by placing the cam followers on each of the guides arranged in one-to-one correspondence.

[0070] In this component mounting device 11, the holding portion is composed of a cam follower and a guide. The cam followers are provided on the outer wall surfaces on both sides of the magazine 31. Note that providing the cam followers on the magazine 31 is just an example, and the present invention is not limited to this. The cam followers may be provided on the stocker main body 33, for example (see embodiment 2).

[0071] In a configuration in which the magazines 31 are provided with cam followers, when the stocker 13 is attached to the tray feeder 15, each magazine 31 housed in the stocker main body 33 is positioned relative to the tray feeder 15 by the holding portion.

[0072] This positioning is achieved by having the cam followers of each magazine 31 housed in the stocker body 33, which protrude from the outer wall surfaces on both sides of the magazine 31, ride up in a one-to-one correspondence onto guides provided on the inner wall surfaces on both sides of the tray feeder 15. That is, the cam followers of the magazine 31 are placed on the guide surface that serves as the reference surface of the tray feeder 15, and the magazine 31 is placed in linear contact with the guide, thereby allowing the pallets 29 housed in each magazine 31 to be positioned collectively in the tray feeder 15. Note that, in the case where the cam followers are provided in the stocker body 33, for example (see below), the entire stocker body 33 is positioned in the tray feeder 15, and the pallets 29 are positioned collectively via the stocker body 33.

[0073] In the component mounting device 11, the magazine 31 is positioned on the tray feeder 15 by the holding section, so that the tray feeder 15 can smoothly take in and out each pallet 29 held in the magazine 31 of the stocker 13.

[0074] In addition, in component mounting device 11, the cam followers include a pair of lower cam followers 17 provided on both sides of magazine 31, and a pair of upper cam followers 19 provided on both sides of magazine 31 at a position higher than the pair of lower cam followers 17. The pair of upper cam followers 19 are disposed further back than the pair of lower cam followers 17 in the stocker mounting direction.

[0075] In this component mounting device 11, when the stocker 13 begins to be attached to the tray feeder 15, a pair of lower cam followers 17 and a pair of upper cam followers 19 provided on the outer wall surfaces on both sides of each magazine 31 simultaneously climb up onto the respective guides provided on the inner wall surfaces on both sides of the tray feeder 15. When the stocker 13 is moved to the rear side, the lower cam follower 17 and the upper cam follower 19 slide on the guide surfaces of the respective guides.

[0076] In the component mounting device 11, if only a pair of lower-stage cam followers 17 were provided, when the lower-stage cam followers 17 are supported by the guide, the center of gravity of the magazine 31 will be forward or rearward of the lower-stage cam followers 17, resulting in a forward- or rearward-inclined posture.

[0077] In contrast, in the component mounting device 11, the lower cam follower 17 is positioned on the near side (rear side) in the insertion direction, and the upper cam follower 19 is positioned on the far side (front side) in the insertion direction, so that it can be positioned horizontally without tilting forward or backward.

[0078] Furthermore, a pair of left-right guides 75 are provided on the inner wall surfaces on both sides of the tray feeder 15, between the upper guide 23 and the lower guide 21. This restricts movement of the magazine 31 in the left-right direction and positions it in place. The stocker 13 is positioned in the front-rear direction in the insertion direction of the magazine 31 by, for example, a connecting mechanism provided in the stocker main body 33. This allows the pallet 29 to be positioned up-down, left-right, front-rear and rear with respect to the tray feeder 15 when the stocker 13 is attached to the feeder main body 41.

[0079] In addition, in the component mounting device 11, the pallet moving section (tray feeder 15) further includes a stocker detection sensor 63 that detects whether or not the stocker 13 is present at the position of the holding section where the pallet 29 can be pulled out from the stocker 13.

[0080] In this component mounting device 11, the stocker detection sensor 63 detects whether the stocker 13 is at a position of the holder where the pallet 29 can be pulled out from the stocker 13. In other words, the stocker detection sensor 63 detects whether the pallet 29 has been positioned by the holder at the correct position.

[0081] When the tray feeder 15 of the component mounting device 11 is operated without the stocker 13 attached, the pallet transport device provided in the tray feeder 15 may come into contact with an operator, etc. Also, if the pallet 29 is not placed in the correct position, the pallet transport device may not be able to take the pallet 29 in or out. By providing the stocker detection sensor 63, the component mounting device 11 can ensure safety and normal operation according to the attachment state of the stocker 13.

[0082] Moreover, the component mounting device 11 further includes a control unit 65 that controls the pallet moving unit (tray feeder 15) not to operate when the stocker 13 is not held by the holding unit.

[0083] This component mounting device 11 is provided with a control unit 65 that controls the tray feeder 15 not to operate when the stocker 13 is not held in the holding unit. The control unit 65 receives a stocker detection signal from the stocker detection sensor 63 and controls the operation or stop of the tray feeder 15. In this way, the component mounting device 11 stops the operation of the pallet transport device when the stocker 13 is not placed in the correct position, thereby preventing poor transport of the pallet 29 and damage to the pallet 29. Furthermore, the component mounting device 11 stops the operation of the pallet transport device when the stocker 13 is not attached, thereby improving safety.

[0084] (Embodiment 2) Next, a component mounting device 99 according to a second embodiment will be described.

[0085] Fig. 11 is a rear view of component mounting device 99 according to embodiment 2 before stocker 101 is mounted. In embodiment 2, the same components as those shown in Figs. 1 to 10 are designated by the same reference numerals and redundant explanations will be omitted.

[0086] A component mounting device 99 according to the second embodiment differs from the first embodiment in the configuration of a stocker 101 for storing pallets 29 and in the configuration of a holder. The other configurations are the same as those of the first embodiment.

[0087] In the component mounting device 99, a stocker 101 directly mounts a plurality of pallets 29 without using a magazine 31. The stocker 101 is provided with a fixed rack 103 on each of the opposing inner wall portions of the stocker main body 33. The fixed rack 103 is provided with a plurality of pairs of left and right pallet support rails 53 spaced apart in the vertical direction, which support a pair of parallel sides of the pallet 29 from below. This allows the stocker 101 to mount any one of the plurality of pallets 29 so that it can be taken in and out of the stocker 101 without using a magazine 31.

[0088] FIG. 12 is a rear view of the component mounting device 99 shown in FIG. 11 after the stocker 101 is mounted. The holding portion of the component mounting device 99 positions the entire stocker 101 with respect to the tray feeder 15. The holding portion is composed of a lower cam follower 105, an upper cam follower 107, a lower guide portion 109, an upper guide portion 111, and a left-right guide 113. The lower cam follower 105 and the upper cam follower 107 are provided in pairs protruding from the left and right outer surfaces of the stocker 101. The lower guide portion 109, the upper guide portion 111, and the left-right guide 113 are provided in pairs on the inner wall portions of, for example, the left and right extending side plate portions 43 of the tray feeder 15. In the second embodiment, the lower guide portion 109 and the upper guide portion 111 are formed as an integrated guide member 115. Therefore, a total of two pairs of guide members 115 are provided on the inner wall portions of the left and right extending side plate portions 43.

[0089] Fig. 13 is a side view of the component mounting device 99 shown in Fig. 12. The pair of upper-stage cam followers 107 are disposed further in the stocker mounting direction (Y direction side) than the pair of lower-stage cam followers 105. The lower-stage cam followers 105 and the upper-stage cam followers 107 simultaneously ride up onto the lower-stage guide portion 109 and the upper-stage guide portion 111. Therefore, the upper-stage guide portion 111 has the inclined surface 73 disposed further in the stocker mounting direction than the lower-stage guide portion 109.

[0090] A pair of left-right guides 113 are provided on the inner wall portions of the left and right extending side plate portions 43 above the guide members 115. This restricts the movement of the stocker 101 also in the left-right direction (X direction) and positions the stocker 101 in place.

[0091] In this component mounting device 99, when the stocker 101 is inserted into the stocker mounting portion 45 of the tray feeder 15, the lower cam follower 105 and the upper cam follower 107 of the stocker 101 ride up onto the lower guide portion 109 and the upper guide portion 111 of the tray feeder 15. As a result of this riding up, the stocker 101 as a whole rises away from the installation surface 47 by a distance D. At the same time, the stocker 101 is positioned in the left-right direction by the left-right guide 113. Finally, when the stocker 101 is inserted to a predetermined position, it is connected to the stocker mounting portion 45 by a connecting mechanism. As a result, the stocker 101 is positioned in the up-down, left-right, front-rear directions (Z, X, and Y directions), and each of the loaded pallets 29 is positioned relative to the tray feeder 15.

[0092] According to the component mounting device 99 of embodiment 2, the stocker 101 can directly mount multiple pallets 29 without using a magazine 31, so that a larger number of pallets 29 can be mounted than in a structure that uses a magazine 31.

[0093] In addition, since the holding parts directly position the entire stocker 101 on the tray feeder 15, the number of holding parts can be reduced compared to a structure in which a holding part is provided for each magazine 31. Furthermore, since the stocker 101 can be positioned collectively, the lower-level guide part 109 and the upper-level guide part 111 on one side can be formed as an integrated guide member 115. This allows the holding part to have a simple structure.

[0094] Therefore, according to the component mounting device 99 of the second embodiment, the workability of the worker in supplying components can be improved.

[0095] Although various embodiments have been described above with reference to the drawings, it goes without saying that the present disclosure is not limited to such examples. It is clear that a person skilled in the art can conceive of various modifications, corrections, substitutions, additions, deletions, and equivalents within the scope of the claims, and it is understood that these also naturally belong to the technical scope of the present disclosure. In addition, the components in the various embodiments described above may be arbitrarily combined within the scope of the invention. [Industrial Applicability]

[0096] The present disclosure is useful as a component mounting device that improves the workability of a worker in supplying components. [Explanation of symbols]

[0097] 11 Parts mounting equipment 13 Stocker 15 Tray Feeder 17 Lower cam follower 19 Upper cam follower 21 Lower guide 23 Upper guide 25 Tray 29 Palette 31 Magazine 33 Stocker body 47 Installation surface 63 Stocker detection sensor 65 Control Unit

Claims

1. A component mounting device including a head unit that picks up components stored in a tray and mounts them on a substrate, a stocker capable of moving on an installation surface of the component mounting device and capable of holding a pallet on which the tray is placed; a holding section for detachably holding the stocker; a pallet moving unit that pulls out the pallet from the stocker and moves it to a take-out position where the parts can be taken out by the head unit, or that inserts the pallet at the take-out position into an insertion position of the stocker where the pallet is not inserted, the stocker includes a magazine for storing the pallets, and a stocker body for storing the magazine; the holding portion is composed of a plurality of cam followers provided on outer wall surfaces on both sides of the magazine, and a plurality of guides provided on inner wall surfaces on both sides of the stocker body, Each of the cam followers is mounted on each of the guides arranged in a one-to-one correspondence, and the pallet is positioned in the pallet moving section. Parts mounting device.

2. The cam followers include a pair of lower cam followers provided on both sides of the magazine; a pair of upper stage side cam followers provided on both sides of the magazine at a position higher than the pair of lower stage side cam followers; the pair of upper stage side cam followers are disposed on the inner side in a mounting direction of the stocker relative to the pair of lower stage side cam followers; The component mounting device according to claim 1.

3. the pallet moving unit further includes a stocker detection sensor that detects whether the stocker is present at a position of the holding unit where the pallet can be pulled out from the stocker.

3. The component mounting device according to claim 1 or 2.

4. a control unit that controls the pallet moving unit not to operate when the stocker is not held by the holding unit, The component mounting device according to any one of claims 1 to 3.

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