JP2005312228A - Method and fixture for assembling linear motor driving/linearly moving mechanism - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a method and a fixture for assembling a linear motor which prevent an unsafe condition and degraded workability due to a magnetic force in assembly of a linear motor driving/linearly moving mechanism. <P>SOLUTION: In the linear motor driving/linearly moving mechanism, the assembling fixture 21 comprising a nonmagnetic material is tentatively fixed on a magnetic surface of a magnet member 14 by a bolt 22, the magnetic force from the tentatively fixed magnet member 14 is interrupted, and the magnet member 14 is attached and fixed in an array position during the assembly of the linear motor driving/linearly moving mechanism for attaching the magnet member 14 for constituting a stator of the linear motor in the array position of a frame 15c. The unsafe condition and the degraded workability due to the magnetic force from the magnet member 14 are prevented. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an assembling method and an assembling jig for a linear motor drive linear motion mechanism used in an electronic component mounting apparatus or the like.

In an electronic component mounting apparatus such as an electronic component mounting apparatus, a linear motion mechanism is frequently used as a head moving mechanism that moves a work head such as a mounting head. As this linear motion mechanism, a linear motor drive linear motion mechanism in which linear motion is performed by a linear motor in recent years has been used in place of the conventionally used ball screw drive type linear motion mechanism. In assembling the linear motion mechanism having this structure, an operation of arranging a plurality of magnet members used as a stator of the linear motor along the stroke direction is performed (for example, see Patent Document 1).
JP-A-10-191617 JP 2001-211631 A

  In the assembly work of the above-mentioned linear motion mechanism, since an operator manually handles a magnet member having strong magnetism, it has been pointed out that unsafe conditions caused by magnetic force and deterioration of workability have been pointed out with regard to safety during work. Has been. For example, when carrying a magnet member, there is a danger of fingers being pinched by the magnet being attracted to a steel surface plate or work table, or bolts, wrenches, etc. are attracted to the magnet member and workability is hindered There is a problem.

  Accordingly, the present invention provides an assembling method and an assembling jig for a linear motor drive linear motion mechanism capable of preventing an unsafe state and workability deterioration caused by magnetic force in assembly of the linear motor drive linear motion mechanism. With the goal.

  In the linear motor drive linear motion mechanism assembly method of the present invention, in the linear motion mechanism in which the driven body is linearly driven by the linear motor, the magnetic members constituting the stator of the linear motor are attached to the arrangement positions of the stator support members. An assembly method of a linear motor drive linear motion mechanism, comprising: a step of temporarily fixing an assembly jig made of a non-magnetic material on the magnetic surface side of the magnetic member; and the magnetic member in a state where the assembly jig is temporarily fixed. A step of attaching and fixing a member at the arrangement position; and a step of removing an assembly jig from the magnetic member fixed at the arrangement position.

  An assembly jig of a linear motor drive linear motion mechanism according to the present invention is a linear motion mechanism in which a driven body is linearly driven by a linear motor, and the magnetic member constituting the stator of the linear motor is arranged at an arrangement position of the stator support member. An assembly jig for a linear motor drive linear motion mechanism used when attaching to a magnetic member, a covering member made of a non-magnetic material covering the magnetic surface side of the magnetic member, and this covering member as the magnetic member Temporary fixing means for temporarily fixing.

  The magnetic member for the stator of the linear motor of the present invention is a linear motor that constitutes the stator of the linear motor in a linear motion mechanism that linearly drives the driven body by the linear motor and is attached to the arrangement position of the stator support member. Temporarily fixing an assembly jig of a linear motor drive linear motion mechanism having a covering member made of a non-magnetic material covering the magnetic surface side of the magnetic member, which is a magnetic member for a stator, to the magnetic member Is formed.

  According to the present invention, the magnetic member is attached to the arrangement position of the stator support member and fixed in a state where the assembly jig made of a non-magnetic material is temporarily fixed to the magnetic surface side of the magnetic member, thereby causing the magnetic force. It is possible to prevent unsafe conditions and deterioration of workability.

  Next, embodiments of the present invention will be described with reference to the drawings. 1 is a plan view of an electronic component mounting apparatus according to an embodiment of the present invention, FIG. 2 is a cross-sectional view of the electronic component mounting apparatus according to an embodiment of the present invention, and FIG. 3 is an electronic circuit according to an embodiment of the present invention. FIG. 4 and FIG. 5 are process explanatory views of the assembly method of the linear motor drive linear motion mechanism according to the embodiment of the present invention.

  First, the structure of the electronic component mounting apparatus will be described with reference to FIGS. This electronic component mounting apparatus is an electronic component mounting apparatus that performs a mounting operation for mounting an electronic component on a substrate. In FIG. 1, a conveyance path 2 is disposed in the X direction on a base 1 of an electronic component mounting apparatus. The transport path 2 transports the substrate 3 on which electronic components are mounted, and positions the substrate 3 at a mounting position set on the transport path 2. The transport path 2 is a substrate positioning unit that transports and positions the substrate 3. On both sides of the conveyance path 2, there are provided a component supply unit 4 in which a plurality of parts feeders 5 are arranged in parallel, and a mounting mechanism for taking out electronic components from these component supply units 4 and mounting them on the substrate 3.

  The mounting mechanism will be described. A Y linear motion mechanism 6 and a guide rail 7 are disposed in the Y direction at the right end portion and the left end portion of the base 1, respectively. As shown in FIG. 2, the Y linear motion mechanism 6 and the guide rail 7 are provided on frames 16 and 22 disposed on the upper surface of the base 1 in the Y direction, respectively. The Y linear motion mechanism 6 is a linear motion mechanism that is driven by a linear motor as will be described later, and moves the moving beam 8 in the Y direction by this linear motion mechanism. That is, the Y linear movement mechanism 6 linearly drives the moving beam 8 that is a driven body by a linear motor. In this linear movement, the left end portion of the moving beam 8 is guided in the Y direction by the guide rail 7.

  The moving beam 8 is disposed in the X direction orthogonal to the Y direction, and similarly includes an X linear motion mechanism (not shown) that is driven by a linear motor. Then, by driving this X linear movement mechanism, the mounting head 9 moves in the X direction along the moving beam 8. As shown in FIG. 2, the mounting head 9 is a multi-type mounting head including a plurality of unit mounting heads 9a, and holds and holds electronic components by suction nozzles 9b provided in each unit mounting head 9a. The mounting head 9 is provided with a substrate recognition camera 9c that moves integrally, and the substrate recognition camera 9c moves on the substrate 3 together with the mounting head 9 to recognize its position.

  The configuration of the linear motor of the Y linear motion mechanism 6 will be described with reference to FIG. As shown in FIG. 3, three frame members 15 a, 15 b, 15 c are formed in the Y direction on the upper surface of the frame 16 so as to form a U-shape. On the lower surface side of the frame 15b and the upper surface of the frame 15c, two upper and lower rows of magnet members 14 (magnetic members) constituting a stator of the linear motor are arranged in the Y direction facing each other in a horizontal posture. . The frames 15b and 15c are stator support members that support the magnet member 14 that is a stator.

  A vertical moving plate 12 as a drive transmission unit is coupled to one end of the moving beam 8, and a movable element 13, a slider 17 and a linear head 19 are fixed to the outer side surface of the moving plate 12. ing. A guide rail 18 and a linear scale 20 are disposed in the Y direction on the inner side surface of the base frame 16. The mover 13 is disposed between two opposing magnet members 14, and the mover 13 transmits a driving force in the Y direction to the moving beam 8 via the moving plate 12.

The slider 17 is fitted to the guide rail 18 so as to be slidable in the Y direction. The guide rail 18 and the slider 17 serve as a guide portion that guides the moving plate 12 that is a drive transmission portion in the first direction. The linear head 19 is located at a position facing the linear scale 20 at a predetermined interval. When the moving beam 8 moves, the linear head 19 moves along the linear scale 20 and outputs a position signal in the Y direction.

  Next, an assembly jig used in assembling the linear motor drive linear motion mechanism and a magnetic member for a stator used in combination with the assembly jig will be described. In the present embodiment, for the purpose of preventing the safety and work efficiency of the assembly work from being impaired by the magnetic force of the magnet member 14 having strong magnetism, a dedicated assembly jig described below and this assembly tool are used. A magnetic member for a specific stator that has been processed so that the jig can be temporarily fixed is used.

  4A, the magnet member 14 has a configuration in which a plate-like magnet 14b is laminated on a base plate 14a made of a nonmagnetic material. When attaching the magnet member 14 to the frame 15b, the base plate 14a is arranged in a posture facing the frame 15b, and is bolted to the frame 15b using an attachment hole 14d provided in the base plate 14a.

  The assembly jig 21 is a plate-shaped covering member that covers the magnet 14b of the magnet member 14, and is made of a nonmagnetic material such as resin. Temporary fixing ribs 21a for temporarily fixing to the magnet member 14 are provided on the side surfaces of the assembling jig 21, and the jigs are temporarily fixed to the base plate 14a corresponding to the positions of the temporary fixing ribs 21a. A screw hole 14d is provided in advance. When the assembly jig 21 is temporarily fixed to the magnet member 14, the bolt 22 is inserted into the bolt hole 21b provided in the temporary fixing rib 21a and fastened to the screw hole 14d.

  That is, the bolt hole 21 b and the bolt 22 provided in the assembling jig 21 serve as temporary fixing means for temporarily fixing the assembling jig 21 to the magnet member 14. Further, the screw hole 14d is a temporary fixing processing portion formed in the magnet member 14 in order to temporarily fix the assembly jig 21. The temporary fixing means is not limited to a combination of bolts and screw holes, and may be any means that can temporarily fix the assembling jig 21 to the magnet member 14.

  The assembling jig 21 includes a covering member made of a non-magnetic material that covers the magnet 14b on the magnetic surface side of the magnet member 14, and a temporary fixing means that temporarily fixes the covering member to the magnet member 14. Further, the magnet member 14 has a form in which a temporarily fixing processing portion for temporarily fixing the assembly jig 21 having the above-described configuration is formed.

  Next, an assembly method of the linear motor drive linear motion mechanism in which the magnet member 14 is attached to the arrangement position of the frames 15b and 15c in the assembly process of the Y linear motion mechanism 6 will be described with reference to FIGS. First, as shown in FIG. 4A, the assembly jig 21 is aligned with the magnet member 14 and temporarily fixed. That is, the bolt 22 is inserted into the bolt hole 21b and fastened with the screw hole 14d.

  Next, as shown in FIG. 4B, the magnet member 14 to which the assembling jig 21 is temporarily fixed is aligned with the arrangement position of the frame 15b, and the bolt 23 is attached to the mounting hole as shown in FIG. 5A. 14c is inserted and fixed to the screw hole 15d (refer FIG.4 (b)) of the flame | frame 15b. Thereafter, as shown in FIG. 5B, the assembly jig 21 is removed from the magnet member 14 to complete the arrangement work of one magnet member 14 in the assembly of the linear motor drive linear motion mechanism.

In other words, the linear motor drive linear motion assembly method includes a step of mounting an assembly jig made of a non-magnetic material on the magnetic surface side of the magnetic member, and the magnetic member with the assembly jig mounted thereon. It includes a step of attaching and fixing at the arrangement position, and a step of removing an assembly jig from the magnetic member fixed at the arrangement position.

  In the above assembly method, the magnet member 14 is handled in a state where the magnet 14b having strong magnetism is covered with the assembly jig 21, so that the fingers are pinched by the magnet being attracted to the steel surface plate or the work table. The workability is not hindered due to the risk of damage and bolts, wrenches and the like are attracted to the magnet member, and it is possible to prevent unsafe conditions and workability deterioration due to magnetic force.

  The assembly method and assembly jig of the linear motor drive linear motion mechanism of the present invention have the effect of preventing the unsafe state and workability deterioration caused by the magnetic force, and the electronic component mounting apparatus or the like This is useful for assembling the linear motion mechanism disposed in the component mounting apparatus.

The top view of the electronic component mounting apparatus of one embodiment of this invention Sectional drawing of the electronic component mounting apparatus of one embodiment of this invention Structure explanatory drawing of Y linear motion mechanism of the electronic component mounting apparatus of one embodiment of this invention Process explanatory drawing of the assembly method of the linear motor drive linear motion mechanism of one embodiment of this invention Process explanatory drawing of the assembly method of the linear motor drive linear motion mechanism of one embodiment of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electronic component mounting apparatus 6 Y linear motion mechanism 8 Moving beam 9 Mounting head 13 Movable element 14 Magnet member 21 Assembly jig 21a Temporary fixing rib

Claims (3)

  In the linear motion mechanism that linearly drives the driven body by a linear motor, the assembly method of the linear motor drive linear motion mechanism that attaches the magnetic member constituting the stator of the linear motor to the arrangement position of the stator support member, Temporarily fixing an assembly jig made of a non-magnetic material to the magnetic surface side of the magnetic member, attaching the magnetic member in a state where the assembly jig is temporarily fixed to the array position, and fixing the magnetic jig; And a step of removing an assembly jig from the magnetic member fixed at the array position.   In a linear motion mechanism in which a driven body is linearly driven by a linear motor, for assembling a linear motor drive linear motion mechanism used when a magnetic member constituting a stator of the linear motor is attached to an array position of a stator support member A linear jig comprising a covering member made of a non-magnetic material having a shape covering the magnetic surface side of the magnetic member, and temporary fixing means for temporarily fixing the covering member to the magnetic member. Assembly jig for motor drive linear motion mechanism. A magnetic member for a stator of a linear motor that constitutes a stator of the linear motor and is attached to an array position of a stator support member in a linear motion mechanism that linearly drives a driven body by a linear motor, A temporary fixing processing portion for temporarily fixing an assembly jig of a linear motor drive linear motion mechanism having a covering member made of a non-magnetic material covering the magnetic surface side to the magnetic member is formed. A magnetic member for a stator of a linear motor.

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