JP5928180B2 - Actuator unit assembly device - Google Patents

Description

  The present invention relates to an actuator unit assembling apparatus.

  2. Description of the Related Art Conventionally, as an actuator unit used as, for example, a drive source for an electric power steering device, a unit in which a motor and a control device that controls the operation of the motor are integrated is known (for example, Patent Document 1). In this type of actuator unit, a bus bar or the like for supplying a drive current to the motor protrudes from the motor housing and is inserted into an insertion hole formed in the case of the control device.

  In general, when manufacturing such an actuator unit, an operator first holds one of the motor and the control device on the fixing device of the assembling apparatus, and the other on the movable device arranged above the fixing device (upper side in the vertical direction). Hold. Then, the movable device is moved downward (downward in the vertical direction) so that the protrusion such as the bus bar is inserted into the insertion recess such as the insertion hole, and the motor and the control device are assembled.

JP 2012-90495 A

  By the way, the positions of the protrusions and the insertion recesses may vary slightly for each individual manufactured due to manufacturing errors of the motor and the control device. Therefore, in order to facilitate alignment between the protrusion and the insertion recess, the assembly device is configured such that the movable instrument holds the other of the motor and the control device so as to be movable (swingable) in the horizontal direction. It is possible. However, if the other of the motor and the control device can be moved in the horizontal direction, the holding state tends to become unstable when the movable device is lowered, making it difficult to quickly move the movable device in the vertical direction. As a result, the work efficiency may be reduced.

  The present invention has been made to solve the above problems, and an object of the present invention is to assemble an actuator unit that can quickly move a movable instrument and can easily assemble a motor and a control device. To provide an apparatus.

  In order to achieve the above object, an invention according to claim 1 is an actuator unit assembling apparatus in which a motor and a control device for controlling the operation of the motor are integrated, and one of the motor and the control device. A fixing device that can fix one side, and a movable device that holds the other of the motor and the control device and is movable in a vertical direction with respect to the fixing device. A main body part movably provided in the vertical direction, a swinging part supported so as to be movable in the horizontal direction with respect to the main body part, and a holding part fixed to the swinging part and holding the other. A guide mechanism having a shaft extending in the vertical direction and having a small diameter portion and a large diameter portion, and a guide formed with an insertion hole through which the shaft is inserted. The guide mechanism moves the swinging portion in the horizontal direction by fitting the large diameter portion into the insertion hole when a vertical interval between the fixed device and the movable device is equal to or greater than a predetermined interval. On the other hand, when the interval between the fixed device and the movable device is less than a predetermined interval, the large-diameter portion is detached from the insertion hole so that the swinging portion is allowed to move in the horizontal direction. The gist is that it was configured.

  According to the above configuration, when the interval between the fixed device and the movable device is equal to or larger than the predetermined interval and the large-diameter portion of the shaft is fitted (engaged) in the insertion hole, the swinging portion moves in the horizontal direction. Therefore, the movable instrument can be quickly lowered while suppressing the other of the motor and the control device from becoming unstable. In addition, when the distance between the fixed instrument and the movable instrument is less than a predetermined distance and the large-diameter portion is detached from the insertion hole, the movement of the swinging portion in the horizontal direction is allowed. Can be assembled.

  According to a second aspect of the present invention, there is provided the actuator unit assembling apparatus according to the first aspect, wherein a gap between the main body portion and the swinging portion is provided at a position facing the swinging portion in the horizontal direction. The gist is that a changeable adjustment member is provided.

  According to the above configuration, the swinging portion abuts on the adjustment member, thereby restricting movement of the swinging portion in the horizontal direction in a state where the large diameter portion is detached from the insertion hole. Therefore, by changing the gap between the adjustment member and the swinging portion, the movable range of the swinging portion in the horizontal direction can be easily adjusted according to the tolerance range of the protrusion of the motor, for example. it can.

  According to a third aspect of the present invention, in the actuator unit assembling apparatus according to the first or second aspect, the shaft is supported so as to be movable in a vertical direction with respect to the main body portion, and the insertion hole is configured to move the swinging hole. The movable device is formed on a moving part, and the movable device is provided so as to be movable in a vertical direction with respect to the fixed device, and has a support base that supports the main body portion so as to be rotatable around a horizontal axis. The summary is provided.

  According to the above configuration, since the holding unit can be oriented in the horizontal direction by rotating the main body, the other of the motor and the control device can be easily held by the holding unit.

  According to a fourth aspect of the present invention, in the actuator unit assembling apparatus according to the third aspect, the movable instrument includes a damper that applies a braking force to the rotation of the main body.

  According to the above configuration, since the main body portion slowly rotates, it is possible to suppress an impact from being applied to the main body portion and the like when the rotation of the main body portion stops.

  ADVANTAGE OF THE INVENTION According to this invention, while being able to move a movable instrument quickly, the assembly apparatus of the actuator unit which can assemble | attach a motor and a control apparatus easily can be provided.

The schematic diagram which shows schematic structure of the actuator unit of one Embodiment. 1 is a partial cross-sectional view illustrating a schematic configuration of an assembling apparatus according to an embodiment. Sectional drawing which shows the movable instrument of one Embodiment. AA sectional drawing of FIG. The side view of the movable instrument of one Embodiment. The schematic diagram which shows the state which lowered | hung the movable instrument of one Embodiment. The expanded sectional view which shows the guide mechanism vicinity in the movable instrument of another example. The partial cross section figure which shows the guide mechanism vicinity in the movable instrument of another example. The partial cross section figure which shows the guide mechanism vicinity in the movable instrument of another example.

Hereinafter, an embodiment in which the present invention is embodied in an assembly apparatus for manufacturing an actuator unit in which a control device is integrally assembled with a motor will be described with reference to the drawings.
First, the actuator unit 1 shown in FIG. 1 will be described. The actuator unit 1 is used as a drive source of an electric power steering device that assists steering operation, for example. As shown in the figure, the motor 2 of the actuator unit 1 is integrally provided with a control device 3 that controls the operation of the motor 2 through the supply of drive power. The motor 2 is configured as a brushless motor including a cylindrical motor housing 11, a stator 12 accommodated in the motor housing 11, and a rotor 13 rotatably supported on the radial inner side of the stator 12. . The bus bar 14 of each phase that is electrically connected to the coil of the stator 12 projects to one end side of the motor housing 11 in the axial direction (the control device 3 side, the upper side in FIG. 1). The motor 2 also includes a rotation angle sensor 15 such as a resolver that detects the rotation angle of the rotor 13, and the sensor signal pin 16 electrically connected to the rotation angle sensor 15 is in the axial direction of the motor housing 11. Projects to one end.

  The control device (ECU) 3 includes an ECU case 21 fixed to one end of the motor housing 11 in the axial direction, and a control board 22a and a power board 22b accommodated in the ECU case 21. The control board 22a is configured with a control circuit that outputs a control signal, and the power board 22b is configured with a drive circuit that supplies driving power to the motor 2 based on the control signal output from the control circuit. Yes. The ECU case 21 is formed with a bus bar insertion hole 23 into which each bus bar 14 is inserted, and a sensor signal pin insertion hole 24 into which the sensor signal pin 16 is inserted. Each bus bar 14 is inserted into the ECU case 21 via the bus bar insertion hole 23 and electrically connected to the power board 22b, and the sensor signal pin 16 is connected to the ECU case 21 via the sensor signal pin insertion hole 24. It is inserted in and connected to the control board 22a. That is, in the present embodiment, the bus bar 14 and the sensor signal pin 16 correspond to the protrusions, and the bus bar insertion hole 23 and the sensor signal pin insertion hole 24 correspond to the insertion recess.

  In the actuator unit 1 configured as described above, the motor 2 is driven by supplying three-phase drive power corresponding to the rotation angle detected by the rotation angle sensor 15 from the control device 3 to the stator 12. ing.

Next, an actuator unit assembly apparatus will be described.
As shown in FIG. 2, the assembling apparatus 31 includes a base 32 installed on the floor, a fixing device 33 fixed on the base 32, and an upper side (vertical direction upper side) of the fixing device 33 and the base 32. And a movable instrument 34 that is movable in the vertical direction. In the present embodiment, the motor 2 is held by the fixed tool 33, and the control device 3 is held by the movable tool 34. The motor 2 and the control device 3 move the movable tool 34 downward (vertically in the lower direction) so that the bus bar 14 and the sensor signal pin 16 are inserted into the bus bar insertion hole 23 and the sensor signal pin insertion hole 24, respectively. It is designed to be assembled by moving to.

  More specifically, a support column 41 extending in the vertical direction is erected substantially at the center of the base 32, and a rail portion 42 extending in the vertical direction is formed on the support column 41. Further, at the upper end of the support column 41, a flange portion 43 is formed that protrudes in the front-rear direction (the left-right direction in FIG. 2) in the horizontal direction orthogonal to the vertical direction. In addition, let the left side in FIG. 2 be the front of this assembly apparatus 31, and let the right side be the back. Pulleys 44a and 44b are rotatably provided at both ends of the flange portion 43, respectively. A wire 45 is wound around the pulleys 44a and 44b, and a movable instrument 34 is connected to one end of the wire 45 suspended from the pulley 44a disposed at the front, and from the pulley 44b disposed at the rear. A balance weight 46 is connected to the other end of the suspended wire 45. The balance weight 46 is set to have substantially the same weight as the movable instrument 34. Thereby, the gravity which acts on the movable instrument 34 is canceled, and the operator can easily move the movable instrument 34 in the vertical direction.

  The fixing device 33 is placed and fixed in front of the support column 41 on the base 32. A holding portion 48 is provided at the upper end portion of the fixing device 33, and the motor 2 is held at a predetermined position by the holding portion 48 and is fixed to the base 32.

  The movable instrument 34 includes a support base 51 formed in a flat plate shape. The support base 51 is connected to one end of the wire 45 in a posture in which the flat plate surface is directed in the front-rear direction. That is, the support base 51 is provided so as to be movable in the vertical direction with respect to the base 32. The support base 51 is provided with an engaging portion 52 that engages with the rail portion 42 of the support column 41 so that the movement of the support base 51 along the vertical direction is guided. The movable instrument 34 includes a main body 53 provided integrally with the support base 51 so as to be movable in the vertical direction, a front-rear direction and a left-right direction with respect to the main body 53 (the left-right direction when the assembly device 31 is viewed from the front, A swinging portion 54 supported so as to be movable in a direction orthogonal to the paper surface in FIG. 2 and a holding portion 55 fixed to the swinging portion 54 are provided.

  More specifically, as shown in FIG. 3, the main body 53 has a flat upper wall 61 and a lower wall 62, and a side wall 63 that connects the upper wall 61 and the lower wall 62. It has a shape and is connected to the support base 51 via a connection frame 64 fixed to the upper surface of the upper wall 61. The upper wall 61 and the lower wall 62 are each provided in a posture along the horizontal direction. The upper wall 61 and the lower wall 62 are respectively formed with openings 61a and 62a penetrating in the vertical direction.

  The swinging portion 54 includes a flat plate upper plate 65 disposed between the upper wall 61 and the lower wall 62, a flat plate lower plate 66 disposed below the lower wall 62, and an opening in the lower wall 62. A connecting portion 67 that is arranged in 62 a and connects the upper plate 65 and the lower plate 66 is provided. The upper plate 65 and the lower plate 66 are each provided in a posture along the horizontal direction. An operation lever 68 is provided on the upper plate 65 so as to protrude upward through the opening 61 a of the upper wall 61. The swinging portion 54 has a horizontal direction (a direction parallel to the upper wall 61 and the lower wall 62) by a plurality of support portions 69 whose upper plate 65 is provided on the lower surface of the upper wall 61 and the upper surface of the lower wall 62, respectively. Is supported so as to be movable. The support portion 69 includes a ball 70 that can roll, and the upper plate 65 is supported by the ball 70. As a result, the swinging portion 54 is moved in the horizontal direction when the ball 70 rolls in a state where the motor 2 held by the fixed device 33 and the control device 3 held by the movable device 34 face each other in the vertical direction. It is supposed to move.

  The holding portion 55 has a plurality of clamp claws 71 rotatably provided on the lower plate 66, and the control device 3 is held or released by rotating each clamp claw 71 by an operating means (not shown). Is supposed to do. Therefore, the operator can move (swing) the control device 3 held by the holding unit 55 in the horizontal direction by holding the operation lever 68 and moving the swinging unit 54 in the horizontal direction. It has become.

  Here, in the movable instrument 34 of the present embodiment, the movement of the swinging portion 54 in the horizontal direction is restricted when the vertical distance between the fixed instrument 33 and the movable instrument 34 is equal to or greater than a predetermined distance. A guide mechanism 72 is provided that allows the swinging portion 54 to move in the horizontal direction when the distance between the instrument 33 and the movable instrument 34 is less than a predetermined distance. The predetermined interval is an interval that is slightly larger than an interval at which the tip of the bus bar 14 or the sensor signal pin 16 starts to be inserted into the bus bar insertion hole 23 or the sensor signal pin insertion hole 24 of the control device 3, for example.

  Specifically, the lower wall 62 of the main body 53 is formed with an extending portion 81 that extends to the rear of the assembling apparatus 31 with respect to the upper wall 61, and the extending portion 81 has a vertical direction. A penetrating through hole 82 is formed. Further, the lower plate 66 of the swinging portion 54 is formed with an extending portion 83 that extends rearward and faces the extending portion 81 of the lower wall 62. The extending portion 83 has a vertical direction. A penetrating insertion hole 84 is formed coaxially with the through hole 82. The through hole 82 is formed in a cylindrical shape whose inner diameter is constant along the vertical direction, and the insertion hole 84 is formed in a tapered shape whose inner diameter gradually increases from the upper side to the lower side. The inner diameter of the through hole 82 is set smaller than the inner diameter at the upper end of the insertion hole 84. A rod-shaped shaft 85 extending in the vertical direction (a direction orthogonal to the upper wall 61 and the lower wall 62) is inserted into the through hole 82 and the insertion hole 84. That is, the shaft 85 is formed in a bar shape extending in the vertical direction in a state where the motor 2 held by the fixed tool 33 and the control device 3 held by the movable tool 34 face each other in the vertical direction. In the present embodiment, the extending portion 83 corresponds to a guide.

  The shaft 85 has a small diameter portion 86 inserted into the through hole 82 and a large diameter portion 87 which is disposed below the small diameter portion 86 and is thicker than the small diameter portion 86. The small diameter part 86 and the large diameter part 87 are each formed in a columnar shape. The upper end portion 87a of the large-diameter portion 87 of this embodiment, that is, the connecting portion with the small-diameter portion 86 is formed in a taper shape whose outer diameter gradually increases from the upper side to the lower side. Further, the outer diameter of the small diameter portion 86 is formed substantially equal to the inner diameter of the through hole 82, and the outer diameter of the portion below the upper end portion 87 a in the large diameter portion 87 is substantially the same as the inner diameter at the lower end of the insertion hole 84. Are equally formed. Furthermore, a convex portion 89 protruding rearward is formed at the lower end of the large diameter portion 87. A disc-shaped flange 90 is fixed to the upper end of the small-diameter portion 86, and a biasing member 91 such as a coil spring is disposed in a compressed state between the extending portion 81 of the lower wall 62 and the flange 90. ing. As a result, the shaft 85 is urged upward, and the upper end portion 87a of the large-diameter portion 87 is fitted (engaged) with the insertion hole 84 to come into contact with the entire inner periphery of the insertion hole 84. The movement of 54 in the horizontal direction is restricted.

  An opening 51a penetrating in the front-rear direction is formed in the support base 51, and a pressing rod 93 that is inserted into the opening 51a and protrudes on both sides in the front-rear direction of the support base 51 is rotatable about a horizontal axis. Is provided. At both ends of the pressing rod 93, rollers 94 a and 94 b that are rotatable around an axis parallel to the left-right direction are provided, respectively, and the front roller 94 a presses the upper surface of the convex portion 89 of the shaft 85. It is biased by a torsion coil spring that does not. Further, as shown in FIG. 2, the support column 41 of the base 32 is formed with a protruding portion 95 with which the rear roller 94 b comes into contact when the fixing device 33 is lowered and the distance from the movable device 34 becomes a predetermined interval. Has been. When the movable instrument 34 is further lowered from the state where the roller 94b is in contact with the engaging portion 52, the pressing rod 93 is rotated, and the front roller 94a pushes down the shaft 85 downward. As a result, the upper end portion 87a of the large diameter portion 87 is detached from the insertion hole 84, and a gap is generated between them, so that the swinging portion 54 is allowed to move in the horizontal direction.

  Further, as shown in FIGS. 3 and 4, a plurality of screw holes 101 penetrating in the front-rear direction and the left-right direction are formed in the side wall 63 at positions facing the upper plate 65 in the front-rear direction or the left-right direction. An adjustment screw 102 as an adjustment member is screwed into the screw hole 101 from the outside of the side wall 63. And the clearance gap between the front-end | tip of each adjustment screw 102 and the upper board 65 is changed by making the adjustment screw 102 advance or retreat. In the present embodiment, the gap between each adjustment screw 102 and the upper plate 65 is such that the small-diameter portion 86 of the shaft 85 and the insertion hole when the interval between the fixing device 33 and the movable device 34 is less than a predetermined interval. 84 is set so as to be smaller than the gap between the two.

  As shown in FIGS. 2 and 5, the connecting frame 64 is supported by the support base 51 via a hinge portion 104 so as to be rotatable around a horizontal axis. A damper 105 is provided between the support base 51 and the connecting frame 64 to apply a braking force to the rotation operation of the main body 53. Note that an air damper is employed for the damper 105 of the present embodiment, and a cylinder 106 that is rotatably connected to the lower end of the support base 51 and a cylinder 106 that is rotatably connected to the connecting frame 64. And a piston 107 which is reciprocally inserted. The damper 105 applies a braking force to the reciprocating motion of the piston 107 by limiting the amount of air per unit time supplied to and discharged from the space partitioned in the cylinder 106 by the piston 107, that is, the body portion 53. A braking force is applied to the rotating operation.

Next, manufacturing (operation) of the actuator unit by the assembly apparatus of this embodiment will be described.
The operator turns the holding portion 55 forward by rotating the main body portion 53 as shown by a two-dot chain line in FIG. 5 in a state where the interval between the fixed device 33 and the movable device 34 is equal to or larger than a predetermined interval. Then, after the control device 3 is held by the holding portion 55 of the movable instrument 34, the main body portion 53 is rotated to turn the holding portion 55 downward. At this time, since the braking force acts on the rotation operation of the main body 53 by the damper 105, the main body 53 rotates slowly. The operator holds the motor 2 on the holding portion 55 of the fixed device 33 before or after the movable device 34 holds the control device 3.

  Subsequently, the operator lowers the movable instrument 34 and brings it close to the fixed instrument 33. At this time, if the interval between the fixed instrument 33 and the movable instrument 34 is equal to or greater than a predetermined distance, the large-diameter portion 87 (upper end portion 87a) of the shaft 85 is fitted into the insertion hole 84 of the oscillating portion 54, thereby swinging. Since the movement of the portion 54 in the horizontal direction is restricted, even if the movable instrument 34 is quickly lowered, the holding state of the control device 3 is unlikely to become unstable. When the distance between the fixed device 33 and the movable device 34 is less than the predetermined distance, as shown in FIG. 6, the roller 94b comes into contact with the protruding portion 95 of the base 32, the pressing rod 93 rotates, and the roller 94a The large diameter portion 87 (upper end portion 87 a) is detached from the insertion hole 84 by pushing down the shaft 85 downward. Thereby, the movement of the swinging part 54 in the horizontal direction, that is, the movement of the control device 3 in the horizontal direction is allowed. In this state, the swinging portion 54 is restricted from moving in the horizontal direction by coming into contact with the adjusting screw 102 provided in the main body portion 53. Then, the operator operates the operation lever 68 to move the control device 3 in the horizontal direction while lowering the movable instrument 34, so that the bus bar 14 and the sensor signal pin 16 are inserted into the bus bar insertion hole 23 and the sensor signal pin insertion hole 24, respectively. And the control device 3 is assembled to the motor 2. Then, the actuator unit 1 is manufactured by fixing the control device 3 to the motor 2 with, for example, caulking or bolts.

As described above, according to the present embodiment, the following effects can be obtained.
(1) Since the movable mechanism 34 is provided with the guide mechanism 72, the movement of the swinging portion 54 in the horizontal direction is restricted when the distance between the fixed instrument 33 and the movable instrument 34 is equal to or greater than a predetermined distance. The movable instrument 34 can be quickly lowered while suppressing the holding state of the instrument from becoming unstable. Further, since the movement of the swinging portion 54 in the horizontal direction is allowed when the distance between the fixed tool 33 and the movable tool 34 is less than a predetermined distance, for example, the position of the bus bar 14 and the bus bar insertion hole 23 are caused by a manufacturing error. Even if the position is deviated, the motor 2 and the control device 3 can be assembled by easily aligning these positions.

  (2) A state in which the large-diameter portion 87 of the shaft 85 is detached from the insertion hole 84 by providing the adjustment screw 102 that can change the gap between the swing plate 54 and the upper plate 65 on the side wall 63 of the main body 53. The movement of the swinging part 54 in the horizontal direction is limited. Therefore, by changing the gap between the upper plate 65 and the adjusting screw 102, the swinging portion 54 can be easily moved in the horizontal direction according to the tolerance range of the bus bar 14 and the sensor signal pin 16 of the motor 2, for example. The movable range can be adjusted.

  (3) Since the main body 53 is pivotally connected to the support base 51, the holding portion 55 can be directed forward by rotating the main body 53, and the control device 3 can be easily moved to the holding portion 55. Can be held.

  (4) Since the movable device 34 is provided with the damper 105 that applies a braking force to the rotation operation of the main body portion 53, the main body portion 53 is rotated slowly. Therefore, when the rotation of the main body portion 53 is stopped. It is possible to suppress an impact from being applied to the main body 53 and the like.

(5) Since the swinging part 54 is supported so as to be movable in the horizontal direction with respect to the main body part 53 via the rollable ball 70, the swinging part 54 can be smoothly moved in the horizontal direction.
In addition, the said embodiment can also be implemented in the following aspects which changed this suitably.

  In the above embodiment, the small-diameter portion 86 of the shaft 85 is disposed above and the large-diameter portion 87 is disposed below. However, the small-diameter portion 86 of the shaft 85 is disposed below and the large-diameter portion 87 is disposed above. May be. In the example shown in FIG. 7, the shaft 85 includes a large-diameter portion 111 inserted through the through hole 82 of the lower wall 62, and a small-diameter portion 112 disposed below the large-diameter portion 111 and thinner than the large-diameter portion 111. Have. In addition, the lower end part 111a of the large diameter part 111 is formed in the taper shape from which an outer diameter becomes large gradually toward upper direction from the downward direction. A convex portion 114 is formed at the upper end of the large-diameter portion 111 so as to protrude rearward from the support base 51 through the opening 51 a of the support base 51. The insertion hole 84 is formed so that its inner diameter gradually increases from the bottom to the top. In this configuration, when the interval between the fixed device 33 and the movable device 34 is less than a predetermined interval, the convex portion 114 comes into contact with the protruding portion 95 of the base 32, so that the shaft 85 is in contact with the swinging portion 54. The large-diameter portion 111 (upper end portion 111a) is detached from the insertion hole 84 by relative movement in the vertical direction.

In the above embodiment, the base 32 is provided as an independent member. However, the present invention is not limited to this, and for example, a part of the fixing device 33 or the support column 41 may have a base function.
In the above embodiment, the main body 53 is connected to the support base 51 so as to be rotatable around an axis along the left-right direction, but the main body 53 is connected to the support base 51 so as not to be rotatable. Also good. In this case, the guide mechanism 72 may be provided between the base 32 and the movable instrument 34.

  Specifically, in the example illustrated in FIG. 8, a shaft 121 disposed behind the support base 51 is formed on the lower plate 66 of the swinging portion 54, and the shaft 121 is inserted into the support column 41 of the base 32. A guide 123 having an insertion hole 122 is formed. The shaft 121 has a small diameter portion 124 formed continuously with the lower plate 66, and a large diameter portion 125 disposed below the small diameter portion 124 and thicker than the small diameter portion 124. In addition, the upper end part 125a of the large diameter part 125 is. It is formed in a tapered shape whose outer diameter gradually increases from the top to the bottom. The insertion hole 122 is formed in a cylindrical shape whose inner diameter is constant along the vertical direction. In this configuration, when the shaft 121 moves integrally with the movable instrument 34 in the vertical direction, and the distance between the fixed instrument 33 and the movable instrument 34 becomes less than a predetermined distance, the large-diameter portion 125 (upper end portion 125a). Comes out of the insertion hole 122.

  In the example shown in FIG. 9, the lower plate 66 of the swinging portion 54 is formed with an insertion hole 131 disposed behind the support base 51, and the support column 41 of the base 32 is inserted into the insertion hole 131. A shaft 132 is formed. The shaft 132 has a small-diameter portion 133 formed continuously with the support column 41, and a large-diameter portion 134 that is disposed above the small-diameter portion 133 and is thicker than the small-diameter portion 133. In addition, the lower end part 134a of the large diameter part 134 is formed in the taper shape from which an outer diameter becomes large gradually toward upper direction from the downward direction. The insertion hole 131 is formed in a cylindrical shape whose inner diameter is constant along the vertical direction. In this configuration, when the insertion hole 131 moves integrally with the movable instrument 34 in the vertical direction, the interval between the fixed instrument 33 and the movable instrument 34 becomes less than a predetermined distance, the large-diameter portion 134 (lower end portion 134a). ) Comes off from the insertion hole 131.

  -In above-mentioned embodiment, although the upper end part 87a of the large diameter part 87 was formed in the taper shape from which an outer diameter changes gradually, it is good also as a step shape which the outer diameter of the upper end part 87a changes suddenly. Further, the insertion hole 84 may have a cylindrical shape with a constant inner diameter, a stepped shape, or the like. Furthermore, the cross-sectional shape of the shaft 85 and the insertion hole 84 is not limited to a circular shape, and may be a polygonal shape, for example. Furthermore, the shaft 85 may be a hollow cylinder. In short, the movement of the oscillating portion 54 in the horizontal direction is restricted in a state where the large diameter portion of the shaft 85 is fitted in the insertion hole 84, and the oscillating portion 54 is in a state where the large diameter portion is detached from the insertion hole 84. If the movement in the horizontal direction can be allowed, the shapes of the shaft 85 and the insertion hole 84 can be appropriately changed.

  In the above embodiment, the ball 70 is provided on the support portion 69 of the main body 53 and the swinging portion 54 is supported via the ball 70. However, the present invention is not limited thereto, and the support portion 69 is formed in a protruding shape, for example. You may support so that the rocking | swiveling part 54 may move to a horizontal direction by sliding with respect to the support part 69. FIG. Further, the support portion 69 may be provided on the upper plate 65 of the swinging portion 54 without being provided on the main body portion 53, for example.

  In the above embodiment, the adjustment screw 102 that is screwed into the screw hole 101 of the side wall 63 is used as an adjustment member for adjusting the movable range of the swinging portion 54 in the horizontal direction. A pin or the like that is lightly press-fitted into the side wall 63 may be used as the adjustment member. Further, the adjustment member (adjustment screw 102) may not be provided.

  In the above embodiment, an air damper is used as the damper 105. However, the present invention is not limited to this, and another damper such as an oil damper may be used. Further, the damper 105 may not be provided in the movable instrument 34.

  In the above embodiment, the motor 2 is held by the fixed instrument 33 and the control device 3 is held by the movable instrument 34. However, even if the control device 3 is held by the fixed instrument 33 and the motor 2 is held by the movable instrument 34, Good.

  In the above embodiment, the present invention is applied to the assembly device 31 in which the control device 3 is assembled to the motor 2 from which the bus bar 14 and the sensor signal pin 16 protrude. However, the control device 3 is applied to the motor 2 provided with other protrusions. You may apply to the assembly apparatus to assemble | attach.

Next, technical ideas that can be grasped from the above-described embodiment and other examples will be described below together with their effects.
(A) In the actuator unit assembling apparatus according to any one of claims 1 to 4, the swinging part is supported so as to be movable in a horizontal direction with respect to the main body part via a rollable ball. An actuator unit assembling apparatus characterized by the above. According to the said structure, a rocking | swiveling part can be moved to a horizontal direction smoothly.

  DESCRIPTION OF SYMBOLS 1 ... Actuator unit, 2 ... Motor, 3 ... Control apparatus, 14 ... Bus bar, 16 ... Sensor signal pin, 31 ... Assembly apparatus, 32 ... Base, 33 ... Fixed instrument, 34 ... Movable instrument, 41 ... Support | pillar, 51 ... Support Base 53, body portion 54, swinging portion 55, holding portion 61, upper wall 62 62 lower wall, 63 side wall, 64 connecting frame, 65 upper plate, 66 lower plate, 67 connecting , 69 ... support part, 70 ... ball, 72 ... guide mechanism, 81, 83 ... extension part (guide), 82 ... through hole, 84, 122, 131 ... insertion hole, 85, 121, 132 ... shaft, 86 , 112, 124, 133 ... small diameter part, 87, 111, 125, 134 ... large diameter part, 87a, 125a ... upper end part, 101 ... screw hole, 102 ... adjustment screw, 104 ... hinge part, 105 ... damper, 111a, 134a ... lower end, 123 Guide.

Claims (4)

In the assembly apparatus of the actuator unit formed by integrating the motor and the control device for controlling the operation of the motor,
A fixing device capable of fixing either the motor or the control device; and a movable device holding the other of the motor and the control device and movable in the vertical direction with respect to the fixing device,
The movable device is fixed to the main body portion provided to be movable in the vertical direction with respect to the fixed device, the swinging portion supported to be movable in the horizontal direction with respect to the main body portion, and the swinging portion. And having a holding portion for holding the other,
A guide mechanism having a shaft extending in the vertical direction and having a small diameter portion and a large diameter portion, and a guide formed with an insertion hole through which the shaft is inserted,
The guide mechanism is configured to move the swinging portion in the horizontal direction by fitting the large diameter portion into the insertion hole when a vertical interval between the fixed device and the movable device is equal to or larger than a predetermined interval. On the other hand, when the interval between the fixed device and the movable device is less than a predetermined interval, the large-diameter portion is detached from the insertion hole so that the swinging portion is allowed to move in the horizontal direction. An assembly apparatus for an actuator unit, characterized in that it is configured as follows. In the actuator unit assembly apparatus according to claim 1,
An actuator unit assembling apparatus, wherein an adjustment member capable of changing a gap between the main body portion and the swinging portion in the horizontal direction is provided. In the assembly apparatus of the actuator unit according to claim 1 or 2,
The shaft is supported so as to be movable in a vertical direction with respect to the main body,
The insertion hole is formed in the swing part,
An assembly of an actuator unit, wherein the movable device includes a support base that is provided so as to be movable in a vertical direction with respect to the fixed device and supports the main body portion so as to be rotatable around a horizontal axis. apparatus. In the assembly apparatus of the actuator unit according to claim 3,
The assembly apparatus for an actuator unit, wherein the movable instrument includes a damper that applies a braking force to the rotation of the main body.