JP2016207844A - Tray holding device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a tray holding device capable of effectively preventing a tray from being floated or moved, by strengthening tray holding power in positioning and holding the tray using a magnetic force.SOLUTION: A tray holding device 1 comprises: a pallet 2 for placing a tray T with a plurality of components P accommodated on a top face thereon; and hold members 3A and 4A for positioning and holding the tray T at a predetermined position on the pallet 2, and supplies the component P from the tray T to a component mounting machine (crimp nozzle 82). The hold members 3A and 4A include: main hold parts 4A and 4B which are held on the pallet 2 by the magnetic force so as to extend while being abutted to side faces of the tray T that is placed on the pallet 2; float prevention parts 42A and 42B which are expanded from the main hold parts 4A and 4B to an upper side of the tray T to prevent the tray T from being floated; and auxiliary hold parts 5A and 5B which are formed integrally with the main hold parts 4A and 4B, extend in a crossing direction across an extension direction of the main hold parts 4A and 4B, and are held on the pallet 2 by the magnetic force.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a tray holding device that positions and holds a tray that accommodates components on an upper surface.

  As a facility for producing a substrate on which a large number of components are mounted, there are a solder printing machine, a component mounting machine, a reflow machine, a board inspection machine, and the like. It has become common to configure a substrate production line by connecting these facilities. Among these, the component mounting machine includes a substrate transfer device, a component supply device, a component transfer device, and a control device. One type of component supply device is a device that uses a tray that accommodates a plurality of components on the top surface. In many cases, the tray type component supply apparatus handles the tray by positioning and holding it at a predetermined position on the pallet. An example of a tray holding device suitable for this type of application is disclosed in Patent Document 1.

  The tray holding device of Patent Document 1 includes positioning means that abuts two adjacent sides of the tray, and clamping means that clamps a corner portion opposite to the tray positioning means. Furthermore, the embodiment discloses an aspect in which a positioning pin is used as the positioning unit and a clamp is used as the clamping unit. The positioning pin is erected on a base plate (pallet), and has a structure in which a lifting prevention collar provided on the top of the positioning pin projects above the tray. Moreover, a clamp tool has the hook nail | claw part which protrudes above a tray, and the magnet embedded in the bottom face, and is hold | maintained at the magnetic plate on a base plate with magnetic force. According to this, the tray can be accurately positioned and held on the base plate.

JP 2008-270442 A

  By the way, as exemplified in Patent Document 1, in the configuration in which the tray is positioned and held using magnetic force, there is a possibility that the tray may be lifted or moved when the components are collected. For example, when the clamping chuck of the component mounting machine clamps and collects one of a plurality of components in the tray, the component may be caught on the tray. In this case, as the sandwiching chuck rises, the tray rises or moves by overcoming the magnetic force. Then, parts are scattered by an impact at the time of ascent or movement, or the tray does not return to the original position, which causes troubles in supplying parts.

  The present invention has been made in view of the above-described problems of the background art, and enhances the tray holding force when the tray is positioned and held using magnetic force, and can effectively prevent the tray from floating and moving. Providing is a problem to be solved.

  The tray holding device of the present invention that solves the above-mentioned problem comprises a pallet on which a tray containing a plurality of components is placed on the upper surface, and a holding member that positions and holds the tray at a predetermined position of the pallet. A tray holding device for supplying the component to a component mounting machine, wherein the holding member is held on the pallet by a magnetic force so as to extend in contact with a side surface of the tray placed on the pallet. A holding portion, a floating prevention portion that protrudes above the tray from the main holding portion to prevent the tray from floating, and is formed integrally with the main holding portion and intersects the extending direction of the main holding portion. And an auxiliary holding part that extends in the crossing direction and is held on the pallet by magnetic force.

  In the tray holding device of the present invention, the holding member is integrally formed with the main holding portion that extends in contact with the side surface of the tray, the anti-lifting portion that protrudes from the main holding portion to the upper side of the tray, and the main holding portion. And an auxiliary holding part extending in the crossing direction. Here, the tray to be lifted from the pallet generates a rotational force in a direction in which the main holding portion is tilted by pushing up the floating prevention portion. At this time, the magnetic force between the auxiliary holding part and the pallet is generated at a position far away from the center of rotation when the main holding part falls down, so that a large tray holding force in the reverse rotation direction is obtained. Therefore, the main holding portion can be prevented from falling down, and the tray can be effectively prevented from floating and moving.

It is a side view which shows the structural example of a tray system component supply apparatus. It is a perspective view explaining the tray holding device of a 1st embodiment. It is a perspective view of the 1st holding member. It is a side view explaining the effect | action of the tray holding | maintenance apparatus of 1st Embodiment. It is a perspective view of the 1st holding member of a 2nd embodiment.

(1. Configuration example of tray system component supply device 9)
First, a configuration example of a tray type component supply apparatus 9 that supplies components using the tray T will be described with reference to FIG. FIG. 1 is a side view showing a configuration example of the tray type component supply device 9. The tray system component supply device 9 uses the tray T held by the tray holding device 1 of the first embodiment, in other words, the pallet 2 on which the tray T is placed. The tray system component supply device 9 is movably disposed on the rear side of the component mounter 8. The tray system component supply device 9 includes a housing 91, a tray stocker 92, a tray transport unit 93, and the like.

  The housing 91 is a substantially vertically long rectangular housing. A tray carry-in portion 911 is provided at the upper portion of the housing 91, and a tray discharge portion 912 is provided at the lower portion of the housing 91. A tray transfer port 913 is opened on the front side of the housing 91 at a substantially intermediate height. The tray stocker 92 is a generally box-shaped member having five storage shelves 921. Each storage shelf 921 stores the pallet 2 so that it can be pulled out to the front side. The tray stocker 92 is driven by a lifting mechanism (not shown) to move up and down in the housing 91. A carry-in holding unit 922 is provided on the upper surface of the tray stocker 92, and a discharge holding unit 923 is provided on the lower surface of the tray stocker 92.

  The tray transport unit 93 is provided on the front side of the housing 91. The tray transport unit 93 includes a transport unit body 931, a pair of transport conveyors 932, a drive sprocket 933, and the like. The transport unit main body 931 is used with the rear part facing the tray transport port 913 and the part other than the rear part inserted into the component mounter 8. The pair of endless annular conveyors 932 are supported by the transport unit body 931 while being spaced apart from each other in the width direction of the transport unit body 931 and extending in the front-rear direction. The pair of transport conveyors 932 are driven to rotate by being driven by a drive sprocket 933 and a motor (not shown). A pallet coupler 934 is provided in the middle of the conveyor 932. The pallet connector 934 grips the locking portion 21 provided at the front edge of the pallet 2 so as to be detachable. The tray transport unit 93 grips the pallet 2 with the pallet coupler 934 and places it on the transport conveyor 932, and transports the pallet 2 by the rotation of the transport conveyor 932.

  Next, the operation of the tray type component supply device 9 will be described. As shown by a broken line in FIG. 1, the tray carry-in portion 911 is pulled out rearward, and the pallet 2 on which the tray T is placed is set. Thereafter, the tray carry-in portion 911 is returned to the front, and the pallet 2 is carried into the housing 91. The loaded pallet 2 is temporarily held in the carry-in holding unit 922 of the raised tray stocker 92. Subsequently, the tray stocker 92 is lowered, and the height position of the carry-in holding unit 922 is adjusted to the tray transfer port 913.

  Then, the transport conveyor 932 of the tray transport unit 93 rotates in the clockwise direction in FIG. 1, and the pallet connector 934 grips the locking portion 21 of the pallet 2 of the carry-in holding unit 922. Subsequently, the transport conveyor 932 rotates in the counterclockwise direction, and the pallet 2 is pulled out onto the transport unit main body 931. Further, the height position of the storage shelf 921 of the tray stocker 92 is adjusted to the tray transfer port 913, the transfer conveyor 932 rotates in the clockwise direction, and the pallet 2 is stored in the storage shelf 921. The operation so far is repeated, and the plurality of pallets 2 are stored in the storage shelf 921.

  When supplying the components to the component mounting machine 8, the tray transport section 93 pulls the pallet 2 to the frontmost component supply position. As a result, the clamping chuck 82 provided on the component mounting head 81 of the component mounting machine 8 can nip and extract the components from the tray T placed on the pallet 2. FIG. 1 illustrates the state in which the pallets 2 are stored in the second and third tiers from the bottom of the storage shelf 921 and the pallets 2 are pulled out from the bottom tier of the storage ledge 921 to the component supply position by hatching.

  The pallet 2 that holds the empty tray T after all the components are used is transported by the tray transport unit 93 to the discharge holding unit 923 of the tray stocker 92. Subsequently, the tray stocker 92 is lowered, and the pallet 2 is transferred to the tray discharge unit 912. The tray discharge unit 912 is pulled out in the same manner as the tray carry-in unit 911, and the empty tray T and pallet 2 are collected.

(2. Configuration of the tray holding device 1 of the first embodiment)
Let us move on to the description of the tray holding device 1 of the first embodiment. FIG. 2 is a perspective view illustrating the tray holding device 1 according to the first embodiment. The tray holding device 1 includes a pallet 2, first and second holding members 3 </ b> A, 3 </ b> B, and three side surface holding members 6.

  The pallet 2 is a substantially rectangular plate material, and is formed of a steel material that attracts magnets 43, 53, and 54 described later. Edge portions 22 formed on the four sides of the pallet 2 protrude upward. The edge portion 22 has a height dimension H <b> 1 smaller than the side surface height H <b> 0 of the tray T and does not hinder the clamping operation of the clamping chuck 82. Positioning is possible by bringing the side surface of the tray T into contact with the inner surface of the edge portion 22. A pair of locking portions 21 are disposed on the front edge of the pallet 2 (the upper right edge in FIG. 2). A tray T is placed on the top surface of the pallet 2. The tray T is made of resin and has a rectangular shape. The tray T accommodates a plurality of components P on the upper surface.

  The first and second holding members 3A and 3B are formed so as to be mirror-symmetric with each other. Here, the first holding member 3A will be described in detail as an example. FIG. 3 is a perspective view of the first holding member 3A. The first holding member 3A includes a main holding portion 4A, four levitation preventing portions 42A, an auxiliary holding portion 5A, and the like.

  The main holding portion 4A is a rod-shaped member made of aluminum having a rectangular cross section, and is used by lying down in the horizontal direction. The horizontal length of the main holding portion 4A is preferably approximately the same as the length of the side of the tray T to be held, and may be shorter than the length of the side. The height dimension H2 of the main holding portion 4A is constant regardless of the position in the length direction, and is larger than the side surface height H0 of the tray T. Six rectangular groove-shaped concave portions 41 are formed on the upper surface of the main holding portion 4A at substantially equal intervals in the length direction.

  The floating prevention portion 42A is a small rectangular plate-like member. The floating prevention portion 42A is horizontally attached to the concave portion 41 using two screws. In FIG. 3, the floating prevention portions 42 </ b> A are integrally attached to the four concave portions 41 except for both ends. The four anti-floating portions 42A project in the direction of one side surface of the main holding portion 4A. The overhang length L1 of the floating prevention portion 42A is set so as not to reach the upper part of the component P. A height dimension H3 from the bottom surface of the main holding portion 4A to the lower surface of the anti-floating portion 42 is set to be slightly larger than the side surface height H0 of the tray T.

  Four small cylindrical magnets 43 are embedded in the bottom surface of the main holding portion 4A at approximately equal intervals in the length direction. The main holder 4 </ b> A is held on the upper surface of the pallet 2 by the magnetic force Fm (shown in FIG. 4) of the magnet 43. In addition, the size, the number, the arrangement position, and the like of the concave portion 41, the floating prevention portion 42A, and the magnet 43 can be appropriately changed according to the size and weight of the tray T to be held. For example, the four levitation preventing portions 42A can be replaced with one long levitation preventing portion that extends in the length direction of the main holding portion 4A.

  The auxiliary holding portion 5A is a rod-shaped member made of aluminum having a rectangular cross section, and is used while lying down in the horizontal direction. The horizontal length of the auxiliary holding portion 5A is preferably smaller than half the length of the side of the tray T to be held. The height dimension H4 of the auxiliary holding part 5A coincides with the height dimension H2 of the main holding part 4A at the one end part 51, and gradually decreases toward the other end part 52 side.

  Two magnets 53 and 54 are embedded in the bottom surface of the auxiliary holding portion 5A so as to be separated in the length direction. The auxiliary holding portion 5 </ b> A is held on the upper surface of the pallet 2 by the magnetic force Fm (shown in FIG. 4) of the magnets 53 and 54. The magnets 53 and 54 are the same product as the magnet 43 of the main holding portion 4 </ b> A, and are not limited to this, and may have a shape different from that of the magnet 43. The size and number of the magnets 53 and 54, the arrangement position, and the like can also be changed according to the size and weight of the tray T to be held.

  As shown in FIG. 3, one end portion 45 of the main holding portion 4 </ b> A and one end portion 51 of the auxiliary holding portion 5 </ b> A are integrally coupled using two screws 57. The auxiliary holding portion 5 </ b> A extends in a crossing direction that intersects the extending direction of the main holding portion 4 at a right angle. And the auxiliary | assistant holding | maintenance part 5A is extended only to the one side where 42 A of floating prevention parts are near among the both sides of a cross direction. Thereby, 3 A of 1st holding members are L-shaped by planar view. Further, the bottom surface of the main holding portion 4A and the bottom surface of the auxiliary holding portion 5A form a single plane and are held on the top surface of the pallet 2.

  Similarly, the second holding member 3B shown in FIG. 2 includes a main holding portion 4B, a floating prevention portion 42B, and an auxiliary holding portion 5B. However, the direction of the floating prevention portion 42B protruding from the main holding portion 4B and the extending direction of the auxiliary holding portion 5B are opposite to those of the first holding member 3A.

  The side surface holding member 6 is a small cuboid member, and its height dimension H5 is lower than the side surface height H0 of the tray T. A magnet (not shown) is also embedded in the bottom surface of the side surface holding member 6, or the side surface holding member 6 itself is a magnet. The side surface holding member 6 is held on the upper surface of the pallet 2 by a magnetic force. The size and the number of the side surface holding members 6 used can also be changed according to the size and weight of the tray T to be held.

(3. Method of holding tray T by tray holding device 1)
Next, a method for holding the tray T by the tray holding device 1 according to the first embodiment will be described. The first side T1 to the fourth side of the rectangular tray T are defined clockwise as shown in FIG. The first side T1 and the third side T3 correspond to the two sides facing each other in the first set, and the second side T2 and the fourth side correspond to the two sides facing each other in the second set. The first side T1 of the tray T is positioned in contact with the edge 22 of the pallet 2.

  The main holding portion 4A of the first holding member 3A is disposed so as to extend in contact with the side surface of the second side T2 of the tray T. At this time, the floating prevention portion 42A is disposed so as to protrude above the tray T from the main holding portion 4A. Further, the auxiliary holding portion 5A of the first holding member 3A is arranged in parallel with being separated from the side surface of the third side T3 of the tray T, and does not protrude from the pallet 2.

  Further, the main holding portion 4B of the second holding member 3B is arranged so as to extend in contact with the side surface of the fourth side of the tray T. At this time, the floating prevention portion 42B is disposed so as to protrude above the tray T from the main holding portion 4B. Further, the auxiliary holding portion 5B of the second holding member 3B is arranged in parallel with being separated from the side surface of the third side T3 of the tray T, and does not protrude from the pallet 2. As a result, the tray T is positioned such that the second side T2 and the fourth side facing each other are sandwiched from both sides by the two main holding portions 4A and 4B. In addition, the second side T2 and the fourth side that face each other are positioned below the floating prevention portions 42A and 42B, respectively, so that the tray T is prevented from floating.

  The three side surface holding members 6 are spaced apart from each other so as to contact the side surface of the third side T3 of the tray T. As a result, the tray T is positioned such that the first side T1 and the third side T3 facing each other are sandwiched from both sides by the edge 22 of the pallet 2 and the three side surface holding members 6.

  In the first embodiment, the reason for using the side surface holding member 6 without bringing the auxiliary holding portions 5A and 5B into contact with the side surface of the third side T3 of the tray T is to prevent the holding operation of the holding chuck 82 from being hindered. It is. More specifically, the part P has an elongated shape in plan view, and the clamping chuck 82 collects the parts P by sandwiching the elongated ends. For this reason, the clamping chuck 82 approaches the first side T1 and the third side T3 of the tray T and does not approach the second side T2 and the fourth side when the component P is clamped and collected from the tray T. . At this time, if the auxiliary holding portions 5A and 5B higher than the side surface height H0 of the tray T are in contact with the side surface of the third side T3, the sandwiching chuck 82 may collide. The possibility of this collision is eliminated by separating the auxiliary holding portions 5A and 5B from the third side T3 and positioning the third side T3 using the low-profile side holding member 6.

(4. Operation of tray holding device 1)
Next, the operation of the tray holding device 1 according to the first embodiment will be described in comparison with the prior art. FIG. 4 is a side view for explaining the operation of the tray holding device 1 of the first embodiment. In the description of the operation, it is assumed that when the clamping chuck 82 is lifted by clamping the component P, the component P is caught on the tray T, and the floating force Ff is generated on the tray T. Note that the cause of the generation of the levitation force Ff may be different. As shown in FIG. 4, the levitation force Ff acts in the direction of pushing up the levitation prevention part 42A.

  At this time, if the total sum of the magnetic forces Fm of the six magnets 43, 53, and 54 of the first holding member 3A is larger than the levitation force Ff, the first holding member 3A does not float away from the pallet 2. However, the possibility that the main holding portion 4A of the first holding member 3A falls due to the floating force Ff is not solved. Therefore, assuming that the levitation force Ff acts on the point P at the tip of the levitation preventing portion 42A, the collapse due to the rotation of the main holding portion 4A will be considered. The rotation center of the main holding portion 4A is a Q point away from the tray T on the bottom surface of the main holding portion 4A.

Then, the rotational force R in the direction in which the main holding portion 4A is tilted is expressed by the following equation.
R = D1 × Ff · cos θ
However, it is the distance D1 between the point P and the point Q, and the angle θ formed by the straight line connecting the point P and the point Q with the upper surface of the pallet 2.

Further, the tray holding force K in the reverse rotation direction that keeps the main holding portion 4A in the current upright posture and prevents the tray T from rising is expressed by the following equation.
K = (4 × D2 + D3 + D4) × Fm
However, the distance D2 between the four magnets 43 of the main holding part 4A and the Q point, and the distances D3 and D4 between the magnets 53 and 54 of the auxiliary holding part 5A and the Q point. As can be seen from the above equation and FIG. 4, a large tray holding force K is ensured by the large distances D3 and D4 of the two magnets 53 and 54 of the auxiliary holding portion 5A.

  On the other hand, the conventional holding member does not have the auxiliary holding portion 5A, but includes only the main holding portion 4A and the floating prevention portion 42A. Therefore, in the prior art, only a small tray holding force based on the small distance D2 can be obtained. For this reason, the rotational force R tends to be larger than the tray holding force, and it is difficult to prevent the main holding portion 4A from falling. On the other hand, according to the tray holding device 1 of the first embodiment, the tray holding force K that is much larger than that of the conventional technique can be obtained, so that the main holding portion 4A does not fall from the upright posture of FIG. Thereby, the floating and movement of the tray T are prevented.

  When the tray T is removed from the pallet 2, the other end 52 of the auxiliary holding portion 5A is lifted as indicated by a white arrow Z in FIG. Thereby, even if it is a small lifting force, a large rotational force is generated, so that the entire first holding member 3A rotates around the Q point, and the magnetic force Fm of each magnet 43, 53, 54 is invalidated. . Therefore, the removal of the first holding member 3A is simple.

(5. Aspects and effects of the tray holding device 1 of the first embodiment)
The tray holding device 1 according to the first embodiment includes a pallet 2 on which a tray T accommodating a plurality of components P is placed on an upper surface, and holding members 3A, 3B, 6 for positioning and holding the tray T at a predetermined position on the pallet 2. The first and second holding members 3A and 3B are disposed on the side surface of the tray T placed on the pallet 2 and supply the component P from the tray T to the component mounting machine 8. Main holding portions 4A and 4B held on the pallet 2 by the magnetic force Fm so as to extend in contact with each other, and a floating prevention portion 42A that protrudes above the tray T from the main holding portions 4A and 4B to prevent the tray T from floating. 42B and the auxiliary holding portion 5A formed integrally with the main holding portions 4A and 4B, extending in the crossing direction intersecting the extending direction of the main holding portions 4A and 4B, and held on the pallet 2 by the magnetic force Fm, 5B.

  Here, the tray T which is about to float from the pallet 2 pushes up the floating prevention portion 42A and generates a rotational force R (= Ff · cos θ) in a direction to tilt the main holding portion 4A. At this time, the magnetic force Fm between the auxiliary holding portions 5A and 5B and the pallet 2 is generated at a position far away from the Q point of the rotation center when the main holding portion 4A falls down, so that the large holding force in the reverse rotation direction is maintained. Force K. Therefore, the main holding portion 4A can be prevented from falling, and the tray T can be effectively prevented from rising and moving.

  Further, the auxiliary holding portion 5A extends only to one side near the levitation preventing portion 42A among both sides in the intersecting direction intersecting the main holding portion 4A. According to this, the first holding member 3A can be easily detached from the pallet 2 by lifting the other end 52 of the auxiliary holding part 5A.

  Further, the first and second holding members 3A and 3B are L-shaped in which the main holding portions 4A and 4B and the auxiliary holding portions 5A and 5B are arranged in parallel with two adjacent sides of the rectangular tray T. Yes. According to this, at least one side of the rectangular tray T can be surely positioned and held, and can be prevented from flying or moving. Further, since the auxiliary holding portions 5A and 5B do not protrude from the pallet 2 and can be easily removed, it is easier to use than the case where the holding member is configured in a T shape or a cross shape.

  Furthermore, the clamping chuck 82 of the component mounting machine 8 approaches the third side T3 of the rectangular tray T and approaches the second side T2 and the fourth side when the component P is clamped and collected from the tray T. In the L-shaped first and second holding members 3A and 3B, the main holding portions 4A and 4B are in contact with the side surfaces of the second side T2 and the fourth side of the tray T, respectively. 5B is separated from the side surface of the third side of the tray T. According to this, there is no possibility that the clamping operation of the clamping chuck 82 is hindered.

  Further, the holding member includes a side surface holding member 6 that is lower than the side surface height H0 of the tray T and is held by the pallet 2 by a magnetic force so as to contact the side surface of the tray T placed on the pallet 2. . According to this, by using the side surface holding member 6 together with the first and second holding members 3 </ b> A and 3 </ b> B, the tray T can be reliably positioned and held without hindering the holding operation of the holding chuck 82.

(6. Holding member 3C of the tray holding device of the second embodiment)
Next, the difference between the tray holding device of the second embodiment and the first embodiment will be mainly described. In the second embodiment, the same pallet 2 as in the first embodiment, and a first holding member 3C and a second holding member different from those in the first embodiment are used. FIG. 5 is a perspective view of the first holding member 3C of the second embodiment. As shown in the drawing, the first holding member 3C of the second embodiment differs from the first holding member 3A of the first embodiment in the height dimension H6 of the auxiliary holding portion 5C, and the other parts are substantially the same.

  That is, the auxiliary holding portion 5C is a rod-shaped member made of aluminum having a rectangular cross section, and is used while lying down in the horizontal direction. The horizontal length of the auxiliary holding portion 5C is preferably smaller than half the length of the side of the tray T to be held. The height dimension H6 of the auxiliary holding portion 5C is constant except for the one end portion 51, and is smaller than the side surface height H0 of the tray. Also in the second embodiment, the second holding member is formed mirror-symmetrically with the first holding member 3C.

  For this reason, when the main holding portion 4A of the first holding member 3C is brought into contact with the side surface of the second side T2 of the tray T, the holding chuck 82 even if the auxiliary holding portion 5C is brought into contact with the side surface of the third side T3. Does not interfere with the clamping operation. Similarly, when the main holding portion of the second holding member is brought into contact with the side surface of the fourth side, the auxiliary holding portion can be brought into contact with the side surface of the third side T3. Thereby, the tray T is positioned with the first side T1 and the third side T3 facing each other being sandwiched from both sides by the edge portion 22 of the pallet 2 and the two auxiliary holding portions 5C. Accordingly, the side surface holding member 6 is not necessary.

  Furthermore, it is also possible to configure a tray holding device using only the pallet 2 and the two first holding members 3C. That is, the first first holding member 3C is brought into contact with the first side T1 and the second side T2 of the tray T, the second first holding member 3C is brought into contact with the third side T3 and the fourth side, The four sides of the tray T can be positioned and held without using the edge 22.

(7. Application and modification of embodiment)
The first and second holding members 3A, 3B, 3C are integrally formed by screw connection of the main holding portions 4A, 4B, the floating prevention portions 42A, 42B, and the auxiliary holding portions 5A, 5B, 5C. However, it is not limited to this. That is, the first and second holding members 3A and 3B may be formed by integration by another coupling method such as adhesion or welding, or may be formed by bending or cutting a single member. Also, instead of embedding the magnets 43, 53, 54 in the bottom surfaces of the first and second holding members 3A, 3B, 3C made of aluminum, the bottom surfaces are magnetized by making the first and second holding members 3A, 3B, 3C made of iron. May be.

  Furthermore, in the first embodiment, the first side T1 of the tray T is positioned by the edge 22 of the pallet 2. However, the first side T1 may be positioned by the side surface holding member 6. According to this, the positions of the four sides of the tray T on the upper surface of the pallet 2 can be set and changed freely. Further, the tray holding device 1 of the first and second embodiments may be used other than the tray type component supply device 9, and may be fixedly placed on a table in a component mounting machine, for example. Various other applications and modifications are possible for the present invention.

1: tray holding device 2: pallet 3A, 3C: first holding member 3B: second holding member 4A, 4B: main holding portion 42A, 42B: floating prevention portion 43: magnet 5A, 5B, 5C: auxiliary holding portion 53, 54: Magnet 6: Side surface holding member 8: Component mounter 82: Nipping chuck 9: Tray type component supply device T: Tray P: Component Ff: Levitation force Fm: Magnetic force

Claims (5)

A tray holding device, comprising: a pallet for placing a tray containing a plurality of components on the upper surface; and a holding member for positioning and holding the tray at a predetermined position of the pallet, and supplying the components from the tray to a component mounting machine Because
The holding member is
A main holding portion held by the pallet by a magnetic force so as to extend in contact with a side surface of the tray placed on the pallet;
A levitation preventing portion that protrudes above the tray from the main holding portion to prevent the tray from floating;
A tray holding device, comprising: an auxiliary holding portion formed integrally with the main holding portion, extending in a crossing direction intersecting with an extending direction of the main holding portion, and held on the pallet by a magnetic force.   2. The tray holding device according to claim 1, wherein the auxiliary holding portion extends only on one side of the both sides in the intersecting direction where the floating prevention portion is close.   The tray holding device according to claim 2, wherein the holding member has an L shape in which the main holding portion and the auxiliary holding portion are arranged in parallel with two adjacent sides of the rectangular tray. The clamping chuck of the component mounting machine approaches one of the two opposing sides of the first set of the rectangular tray and holds the two sets of opposing two sides when the components are clamped and collected from the tray. Without approaching
In the two L-shaped holding members, each of the main holding portions abuts against the side surfaces of two opposite sides of the second set of the tray, and each of the auxiliary holding portions faces 2 of the first set of the tray. The tray holding device according to claim 3, which is separated from a side surface of the side.   5. The holding member includes a side holding member that is lower than a height of a side surface of the tray and is held by the pallet by a magnetic force so as to contact a side surface of the tray placed on the pallet. The tray holding device according to any one of the above.

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