JPH0957555A - Assembly device for bearing member - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve phase-matching accuracy, and simplify a phase-matching mechanism in a case where a ringlike bearing member, having an oil hole, is pressed into a bearing insertion hole by a pressing-in means to be assembled in a condition where the oil hole is made a given phase decision. SOLUTION: This device is provided with phase-matching units 11A-11C for retaining a bearing member to rotate it around the axis line of the bearing member, and a bearing member retaining unit 30 for inserting a pin into an oil hole at the time of the rotation of the bearing member to decide the phase of the oil hole of the bearing member to carry the bearing member from the phase-decision position to a delivering position to a press-in tool.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a device for assembling a ring-shaped bearing member having an oil hole by press-fitting it into a bearing insertion hole by a press-fitting device in a state where the oil hole has a predetermined phase.

[0002]

2. Description of the Related Art Conventionally, in an engine having a balance shaft in a cylinder block, a ring-shaped bush having an oil hole which is a bearing member of the balance shaft is press-fitted into a bush insertion hole of the cylinder block using a press-fitting tool. However, prior to the press-fitting process, the oil holes on the bush are aligned at the phase determining station so that the oil holes on the bush side coincide with the oil holes on the bush insertion hole side.

At the phasing station, the bushing is rotated around its axis to complete the phasing, and the bush with this phasing is conveyed from the phasing station to the press-fitting station by another manipulator, and is inserted into the press-fitting tool. I was trying to transfer it.

When determining the phase of the oil hole of the bearing member having the oil hole, air is supplied to the oil hole of the bearing installation portion so that the oil hole of the bearing member is in phase with the oil hole of the bearing installation portion. There is known a method of checking whether or not the bearing member is mounted in such a state (see JP-A-2-152738).

[0005]

However, the conventional phase adjusting mechanism has a complicated structure, and when the bush whose phase has been determined is gripped by another manipulator or when the bush is transferred to the press fitting tool. However, there is a problem that the oil holes of the above are out of phase.

In view of the above-mentioned circumstances, the present invention provides a bearing member assembling apparatus capable of improving the accuracy of phase matching of a ring-shaped bearing member having an oil hole and simplifying the phase matching mechanism. The purpose is to

[0007]

A bearing member assembling apparatus according to the present invention comprises means for holding a bearing member having an oil hole and rotating the bearing member around its axis, and means for rotating the bearing member by the rotating means. A means for phase-determining the oil hole of the bearing member by inserting a pin into the oil hole; and means for conveying the bearing member with the oil hole phased from the phase-determining position to the delivery position for the press-fitting means. It is characterized by becoming.

The means for transporting the bearing member with the oil holes phased from the phasing position to the delivery position for the press-fitting means preferably transports the bearing member with the pin inserted in the oil hole of the bearing member. .

It is preferable that the means for determining the phase of the oil hole also serves as means for conveying the bearing member from the phase determining position to the delivery position.

It is preferable that the press-fitting means is reciprocally movable between a retracted position for receiving the bearing member and an advanced position for pressing the bearing member into the bearing insertion hole. Further, the press-fitting means is preferably configured to simultaneously receive the plurality of bearing members in the retracted position,
Further, it is preferable that the press-fitting means is configured to press-fit a plurality of bearing members into the bearing insertion holes at the same time in the forward movement position.

In one embodiment of the present invention, the bearing member is a balance shaft bearing of an engine, and as an example of the engine in that case, two bearing insertion holes are provided for each balance shaft. Equipped with a book balance shaft. In that case, the press-fitting means is configured to simultaneously receive the six bearing members in the retracted position, and in the advancing direction so that two of the bearing members can be press-fitted into the bearing insertion holes in the advancing position. It is preferable to be provided so as to be movable in the direction at right angles.

[0012]

According to the present invention, when the rotating means rotates the bearing member, a pin is inserted into the oil hole to phase the oil hole of the bearing member. Matching becomes possible.

Particularly, when the bearing member is configured to be conveyed from the phasing position to the delivery position for the press-fitting means while the pin is inserted into the oil hole of the bearing member,
There is an advantage that there is no chance that the phase shift of the oil hole occurs when the bearing member is transported.

Further, when the means for determining the phase of the oil hole also serves as the means for conveying the bearing member from the phase determining position to the delivery position, there is an advantage that the structure of the entire apparatus can be simplified.

Further, when the press-fitting means is configured to simultaneously receive a plurality of bearing members in the retracted position,
In addition, when the plurality of bearing members are configured to be press-fitted into the bearing insertion holes at the same time at the forward position, the efficiency of press-fitting the bearing members is improved.

[0016]

Embodiments of the present invention will be described below with reference to the drawings.

First, prior to the description of the structure of the bearing member mounting apparatus according to the present invention, the structure of the cylinder block of the engine in which the bearing member (balance shaft bush) is mounted by this apparatus will be described. 2 is a front view in which a part of FIG.
A cross-sectional view taken along the line II-II, and FIG. 3 shows the bearing member III in FIG.
FIG. 4 is an enlarged sectional view taken along line III-III, and FIG. 4 is a sectional view taken along line IV-IV in FIG.

A cylinder block 1 of an in-line four-cylinder engine having four cylinders 2a to 2d is parallel to the left and right of the crankshaft indicated by the axis L ₀ and the crankshaft indicated by the axes L ₁ and L ₂ , respectively. It has two balance shafts.

As is apparent from FIG. 2, the cylinder block 1 is provided with five bearing portions 3a to 3e which rotatably support the crankshaft along the axis L ₀ , and is # 1.
The bearing portion 3a is on the front wall 1a of the cylinder block 1, and the # 5 bearing portion 3e is on the rear wall 1e of the cylinder block 1.
4 bearing parts 3b-3d are the front walls 1a of the cylinder block 1.
And the partition walls 1b to 1d provided between the rear wall 1e and the rear wall 1e so as to be orthogonal to the axis L ₀ .

The left balance shaft having the axis L ₁ is rotatably supported by the three ring bushes 4A ₁ , 4B ₁ and 4C ₁ , and the right balance shaft having the axis L ₂ is 3 pieces. Ring bushes 4A ₂ , 4
It is rotatably supported by B ₂ and 4C ₂ , and has insertion holes 5A ₁ and 5A for bushes 4A ₁ and 4A _2.
2 is a bush 4 on the front wall 1a of the cylinder block 1.
B _1, 4B ₂ of the insertion holes 5B _1, 5B ₂ partition wall 1c, Bush 4C _1, insertion of 4C ₂ holes 5C _1, 5C ₂ partition wall 1
d are formed respectively.

Each bush 4A ₁ , 4B ₁ , 4C ₁ ; 4A
_As shown in FIGS. 3 and 4, two oil holes ₂ , 4B ₂ and 4C ₂ have two oil holes 6 formed at an angular interval of about 180 °.
6 and an oil groove 7 formed annularly on the inner peripheral surface so that these oil holes 6 and 6 face. And Bush 4A
The inner diameters of _{1 to} 4C ₁ and 4A _{2 to} 4C ₂ are 4A ₁ = 4A ₂ > 4B ₁ = 4B ₂ > 4C ₁ = 4C ₂ so that the balance shaft can be inserted from the front wall 1a side of the cylinder block 1.
The bush insertion hole 5A ₁
~ 5C ₁ , 5A ₂ ~ 5C ₂ inner diameter, bush 4C ₁ ,
4C ₂ → 4B ₁ , 4B ₂ → 4A ₁ , 4A ₂ in order, that is, from the bush on the far side in order so that it can be press-fitted into the bush insertion hole using a press-fitting tool 5A ₁ = 5A ₂ > 5B ₁ = 5
The relationship of B ₂ > 5C ₁ = 5C ₂ is set, and accordingly, the outer diameters of the bushes 4A _{1 to} 4C ₁ and 4A _{2 to} 4C ₂ are also set to the same relationship.

By the way, the outer diameter of the bush in this embodiment is shown as 4A ₁ , 4A ₂ = 46 ^mmφ , 4B ₁
= 4B ₂ = 44 mm ^φ , 4C ₁ = 4C ₂ = 42 mm ^φ , and the thicknesses are all the same. The inner diameter of the oil hole 6 is 4 mm.

FIG. 5 is a plan view showing an embodiment of a bearing member assembling apparatus according to the present invention, FIG. 6 is a side view thereof, and FIG. 7 is a sectional view taken along line VII-VII of FIG.

This device is roughly divided into a phase matching device 10, a bush holding unit 30, a cylinder block positioning unit 40, and a bush press-fitting device 50.

The phase matching device 10 comprises phase matching units 11A, 11B and 11C as shown in FIGS.
Are arranged vertically as shown in FIG. 7, and bushes 4A _{1 to} 4C each having oil holes 6 and 6 are provided.
Three pieces of ₁ and 4A _{2 to} 4C ₂ are chucked and conveyed to the phase setting position, and the bush 4 is placed at the phase setting position.
It has a function of rotating A _{1 to} 4C ₁ and 4A _{2 to} 4C ₂ by a maximum of 190 °.

As shown in FIGS. 10 and 11, the bush holding unit 30 has three stages 2 on the surface of the flat substrate 34.
Six bush holders 33A ₁ , 33B ₁ , 33C ₁ ; 33A ₂ , 33 arranged in rows and arranged in matrix
It is equipped with B ₂ and 33C ₂ . Each bush holder 33A
_{1 to} 33C ₁ , 33A _{2 to} 33C ₂ are each bush 4A
_{1 to} 4C ₁ and 4A _{2 to} 4C ₂ each have a circular hole 31 for rotatably holding the outer peripheral surface thereof, and the bushes 4A ₁ to
4C _1, 4A and ₂ ～4C phase determining pin 32 to be inserted into the oil hole 6 of ₂ are respectively provided retractably in a predetermined position of the inner peripheral surface of the circular hole 31. Bush holders 33A _{1 to} 33C ₁ ,
The horizontal spacing between the axes of the circular holes 31 of 33A _{2 to} 33C ₂ is equal to the spacing _DH between the axes L ₁ and L ₂ of the cylinder block 1, and the vertical spacing is the phase matching unit 11A, It is set to be equal to the distance D _V between the axes of the chucks 12 (described later) of 11B and 11C.

The bush holding unit 30 includes bush holding members 33A _{1 to} 33C ₁ and 33A _{2 to} 33C.
₂ , the bushes 4A ₁ to 4 rotated by the phase matching units 11A to 11C at the above-described phase determining position
C _1, 4A ₂ ~4C ₂ was rotatably held, and insert the bushing 4A ₁ ~4C _1, 4A ₂ ~4C phase determining pin 32 is driven by the cylinder 35 to the oil holes 6 of the ₂ rotating bushing After phasing the oil holes 6 of 4A _{1 to} 4C ₁ and 4A _{2 to} 4C ₂ , the bushes 4A _{1 to} 4C ₁ and 4A ₂
4C ₂ from the phasing position to the bush press-fitting unit 50 with the phasing pin 32 inserted in the oil holes 6.
It has a function of conveying to the bush delivery position with respect to.

Cylinder block positioning unit 40
Has a function of lifting the cylinder block 1 conveyed by the conveyor with a cylinder (not shown) and fixing the front wall 1a at the bush press-fitting position with the front wall 1a facing the bush press-fitting device 50 as shown in FIGS. 5 and 6. Have.

The bush press-fitting device 50 includes six bushes.
Press fitting 51A₁, 51B₁, 51C ₁51A₂, 51
B₂, 51C₂Equipped with 3 rows and 2 columns, these bushes
Press fitting tool 51A₁~ 51C₁, 51A₂~ 51C₂Axis
The horizontal spacing between the lines is also the axis L of the cylinder block 1.
₁, L₂Interval D between_HEqual to and vertical spacing
Also the phase adjustment units 11A, 11B, 11C
Distance D between the axes of the rack 12 (described later)_VIs set equal to
ing.

Bush press fittings 51A _{1 to} 51C ₁ , 51
A _{2 to} 51C ₂ are the bush holding units 30 to the bushes 4A _{1 to} 4C ₁ and 4A at the bush transfer position.
After receiving the ₂ ～4C ₂ simultaneously being actuated by two,
Bushings 4C ₁ , 4C ₂ ; 4B ₁ , 4B ₂ ; 4A ₁ , 4 with respect to the cylinder block 1 positioned at a predetermined position by the cylinder block positioning unit 40.
It is configured to be assembled in the order of A ₂ .

That is, first, the bush press-fitting tool 5 at the lowest stage aligned with the axis lines L ₁ and L ₂ of the balance shaft.
1C ₁ and 51C ₂ are driven in the axial direction, and the bush 4
C ₁ and 4C ₂ are the bush insertion holes 5C ₁ and 5C _{2 that} are deepest
Respectively into the bush press-fitting tool 51.
B ₁ and 51B ₂ are lowered to a position where they are aligned with the axes L ₁ and L ₂ and are driven in the axial direction, so that the bushes 4B ₁ and
4B ₂ is press-fitted into the intermediate bush insertion holes 5B ₁ and 5B ₂ , respectively, and finally the uppermost bush press-fitting tool 51A ₁ ,
51A ₂ descends to a position aligned with the axes L ₁ and L ₂ and is driven in the axial direction so that the bushes 4A ₁ and 4A
₂ is press-fitted into the bush insertion holes 5A ₁ and 5A ₂ in the foremost position.

Next, the detailed configuration of each unit and its operation will be further described.

First, the phase matching unit 11A (the same applies to 11B and 11C) of the phase matching device 10 is
As shown in FIG. 8 (side view) and FIG. 9 (front view), the bush 4 is brought into contact with the inner peripheral surface of the bush 4A ₁ (4A ₂ ).
A chuck 12 at the tip equipped with three claws 12a for holding A ₁ (4A ₂ ), a motor 13 for rotating the chuck 12 at a maximum of 190 °, and a support plate 14 to which the chuck 12 is attached are attached to the chuck 12 in the axial direction. The main components are a cylinder 15 that moves forward and backward and a substrate 16 to which the cylinder 15 is fixed. At the outer edge of the claw 12a, the bush 4A ₁
To avoid interference between the phase determining pin 32 which is inserted into the oil hole 6 of ~4C _1, 4A ₂ ~4C _2, recesses 12b are formed.

The base 17 of the phase adjusting device 10 is fixed to one of the pair of columns 52, 52 closest to the cylinder block positioning unit 40 of the plurality of pairs of columns forming the frame of the bush press-fitting device 50. , This base 17
Extends horizontally in a direction perpendicular to the bush press-fitting direction, and two rails 18, 18 are provided on the base 17 so as to extend in a direction perpendicular to the bush press-fitting direction. Then, as shown in FIGS. 5 and 7, three phasing units 11A, 11B and 11C are fixed on the rails 18 and 18 in the order of 11A, 11B and 11C from the top to the bottom. It is arranged so that it can slide. Phase matching unit 11A, 11B, 11
The vertical distance D _V between the axes of the chucks 12 of C is
As described above, the bush holding unit 30 shown in FIG.
Bush holder 33A of _{1 ~33C 1,} 33A _{2 ~33}
It corresponds to the vertical distance between the axes of the circular holes 31 of C ₂ .

The phase matching units 11A, 11B,
A slidable support 19 of 11C is driven by a cylinder 20 and slides horizontally on the rails 18, 18. And this support 19
Is configured so that it can be stopped at the following three positions.

That is, in the plan view shown in FIG. 5, the phase matching units 11A, 11B,
The horizontal axis position of the chuck 12 of 11C is an axial position L ₃ capable of chucking three types of large, medium and small bushes supplied from the bush escape 21, and three types of bushes by the phase matching units 11A, 11B and 11C. ,
Bush holders 33A ₁ and 33A of the bush holding unit 30 at the phasing position shown by phantom lines in FIGS. 5 and 7.
B _1, the axis position L ₄ to obtain transfer simultaneously 33C _1, the three types of bushings, the bushing holding member 33A ₂ of the bush holding unit 30, 33B _2, 33C ₂ respectively match with the axis position L ₅ obtained transfer simultaneously It stops at three positions.

The operations of the phase matching device 10 and the bush holding unit 30 are as follows.

(1) First, the phase matching units 11A to 1
The cylinder 15 of each phase adjusting unit 11A to 11C operates at a position where the horizontal position of the axis of the chuck 12 of 1C coincides with L ₃ , and the chuck 12 advances toward the bush escape 21 to the right in FIG. Three kinds of bushes are chucked and retreat.

(2) Next, the support base 19 is moved downward by the cylinder 20 in FIG. 5 (to the right in FIG. 7) to a position where the horizontal position of the axis of the chuck 12 of the phase adjusting units 11A to 11C coincides with L ₄ . Slide and stop.

(3) Each phase matching unit 11A to 1 again
The cylinder 1C of 1C operates and the bush has three claws 1.
Phase matching units 11A to 1 chucked by 2a
1C is moved forward by the cylinder 15, and the bush 4A ₁
～4C ₁ to be inserted into the circular hole 31 in which a phase determining pin 32 of the bushing holding member 33A ₁ ~33C ₁ bush holding unit 30 is retracted.

[0041] (4) Next, each bush holding body 33A ₁ ~3
The motor 13 of each of the phase matching units 11A to 11C is operated with the cylinder 35 of 3C ₁ operating and the tip of the phase determining pin 32 being pressed against the outer peripheral surfaces of the bushes 4A _{1 to} 4C _1.
Is activated and the bushes 4A _{1 to} 4C ₁ are pushed to the bush holder 3
Rotate in the circular hole 31 of 3A _{1 to} 33C ₁ . When this rotation oil hole 6 of the bushing 4A ₁ ~4C ₁ matches the phase determining pin 32, the pin 32 because it is inserted into the oil hole 6, the bushing 4A ₁ ~4C ₁ its oil hole 6 is determined phase stop at the pawl 12a Bush 4A ₁ ~4C ₁
Slides on the inner peripheral surface and stops, and bushes 4A _{1 to} 4C
The phase determination of the oil hole 6 of ₁ is completed.

[0042] (5) the pawl 12a is removed from the bushing 4A ₁ ~4C _1, the chuck 12 is retracted, then the phasing unit 11A~11C by the support base 19 is a cylinder 20
The position of the chuck 12 in the horizontal direction of the axis returns to the position corresponding to L ₃ .

(6) The operation of (1) is repeated and each chuck 1
Chuck the bushes to 2 respectively.

(7) The support base 19 is slid downwardly in FIG. 5 (to the right in FIG. 7) by the cylinder 20 to a position where the horizontal position of the axis of the chuck 12 of the phase adjusting units 11A to 11C coincides with L ₅ . And stop.

(8) The operations of (3) to (5) are repeated, and the phase determining pin 32 is inserted into the oil hole 6 in each of the bush holders 33A _{2 to} 33C _{2 so} that the oil of the bushes 4A _{2 to} 4C ₂ is removed. The phasing of the holes 6 is completed. 6 bushes 4A _{1 to} 4C ₁ ,
As shown in FIG. 10, 4A _{2 to} 4C ₂ are held by the bush holding unit 30 with the phase determining pin 32 inserted in the oil hole 6, and the phase determination is completed.

(9) Bushing 4A _1-
4C ₁ and 4A _{2 to} 4C ₂ are connected to the oil holes 6 as shown in FIG.
The bush holding unit 30 which holds the phasing pin 32 in the state where the phasing pin 32 is inserted into the bush holding unit 30 moves the axes L ₄ and L ₅ toward the bush delivery standby position shown by the solid lines in FIGS. Move horizontally across.

Next, the structure of the bush press-fitting device 50 will be further described. Among the plurality of pairs of columns forming the frame of the bush press-fitting device 50, one pair of columns 52, 52 closest to the cylinder block positioning unit 40 is provided. , 6
Bush press fittings 51A ₁ , 51B ₁ , 51C ₁ ; 51A
A holding body 53, which holds ₂ , 51B ₂ and 51C ₂ slidably in the axial direction, is provided slidably in the vertical direction. Rails 54 are vertically extended on the surfaces of the columns 52, 52 opposite to the cylinder block positioning unit 40 side, and the holding body plate 53 is mounted on a base 55 of the bush press-fitting device 50. The rail 5 is driven by a cylinder 56 that is erected so that the axis is vertical.
It is configured to slide up and down on 4, 54.

Six bush press-fitting tools 51A _{1 to} 51
The distance between the axes of C ₁ and 51A _{2 to} 51C ₂ is determined by the bush holding members 33A _{1 to} 3 of the bush holding unit 30.
3C _1, 33A ₂ ~33C distance D _H between the axes mutual ₂
(Horizontal direction) and D _V (vertical direction). The outer diameters of the bush press-fitting tools 51C ₁ and 51C _{2 in} the lowermost stage are set so that they can pass through the bush insertion holes 5A ₁ , 5B ₁ and 5A ₂ , 5B _{2 of the} cylinder block 1, respectively. Bush press fittings 51B ₁ , 51B
₂ outer diameter is set to a dimension that can pass through the bushing insertion hole 5A ₁ and 5A ₂ of the cylinder block 1, respectively.

When the holding plate 53 is at the lowermost slide position, the axis lines of the bush press-fitting tools 51C ₁ and 51C ₂ are aligned with the axis line of the balancer shaft of the cylinder block 1 which is positioned at a predetermined position by the cylinder block positioning unit 40. L _1, coincides with the L _2, and bush press-fit tool 51C _1, 51C and the axis of the _2, the axis of the chuck 12 of the phase adjusting unit 11C, the bushing holder 33 of the bush holding unit 30 in the phase-determining position
The axes of C ₁ and 33C ₂ are set so that they are all on the same horizontal plane.

Therefore, the bush holding unit 30
From the phasing position shown by the phantom lines in FIGS. 5 and 7,
The six bushes 4A _{1 to} 4C ₁ and 4A ₂ held by the bush holding unit 30 are horizontally moved to the bush delivery standby position shown by solid lines in FIGS. 5 and 6.
Axis of ～4C ₂ is, six bushings press-fit tool 51A ₁ to 5
It corresponds to the corresponding axis of 1C ₁ , 51A _{2 to} 51C ₂ .

Bush press fittings 51A _{1 to} 51C ₁ , 51
_Two bush press-fitting cylinders 5 are provided between the pair of columns 57, 57 behind the pair of columns 52, 52 on which the holding bodies 53 of A _{2 to} 51 C ₂ are slidable in the vertical direction.
A member 58 is fixed to support members 9 and 59 in such a manner that their axes coincide with the axes L ₁ and L ₂ , respectively. As shown in FIG. 5, an engaging member 61 having a U-shape when viewed from above and below is fixed to the tip of the piston rod 60 of each of the cylinders 59, 59. Then, six of the bush press-fitting tool 51A ₁ ~51C _1, 51A ₂ each rear end of ～51C ₂ (FIG. 5, the left end in FIG. 6), engaging the vertical direction and the U-shaped engaging member 61 A possible flange 62 is provided. This flange 62 can freely pass through the inside of the U-shaped engaging member 61 in the vertical direction, but only the flange 62 of the bush press-fitting tool whose axis coincides with the axis of the piston rod 60 of the cylinder 59. By engaging with the engaging member 61 of 60, the bush press-fitting tool is configured to be driven in the axial direction following the forward / backward movement of the piston rod 60.

On the other hand, bush press-fitting tools 51A _{1 to} 51
Tip of C ₁ , 51A _{2 to} 51C ₂ (right end of FIGS. 5 and 6)
The corresponding bushing 4A ₁ to ~4C _1, 4A ₂ ~4C
Bush holding end portions 63A _{1 to} 63C ₁ and 63A _{2 to} 63C ₂ having outer diameters capable of fitting the _two are respectively provided. Then, the bushes 4A _{1 to} 4C ₁ and 4A _{2 to} 4C _{2 for which} the bush holding unit 30 has completed the phase determination.
While holding the phase setting pin 32 inserted in the oil hole 6 as shown in FIG. 10, move to the bush delivery standby position shown by the solid line in FIGS. 5 and 6, and further to the left in the figure. When the bush reaches the bush transfer position, the bush holding ends 63A _{1 to} 63C ₁ and 63A _{2 to} 63C.
₂ is from the bush holding unit 30 to the bush 4A ₁
~4C _1, adapted to receive 4A ₂ ~4C _2. The bush holding ends 63A _{1 to} 63C ₁ , 63
At a predetermined angular position of the outer peripheral surface of the A ₂ ~63C _2, when the bushing _{4A 1 ~4C 1, 4A 2 ~4C} 2 is fitted,
Phase determining pin 3 still inserted in the oil hole 6
Axial groove (not shown) to avoid interference with 2
Are formed.

The operation of the bush press-fitting device 50 and the related operation of the bush holding unit 30 following (9) above are as follows.

(10) The bush holding unit 30 moved to the bush delivery standby position shown by the solid line in FIGS. 5 and 6.
Moves to the left side in FIGS. 5 and 6 along the axes L ₁ and L ₂ to the bush delivery position, and the bush bush 4A
_{1 to} 4C ₁ , 4A _{2 to} 4C ₂ for bush holding end 63A
_It fits in _{1 to} 63C ₁ and 63A _{2 to} 63C ₂ .

(11) Bush holder 33A _{1 to} 33
The cylinders C ₁ , 33A _{2 to} 33C ₂ are actuated so that the phasing pin 32 moves to the bushes 4A _{1 to} 4C ₁ , 4A.
After escaping from _{2 ~4C 2} oil hole, the bush holding unit 30 is retracted in the bush transfer standby position, then returns to the phase determination position.

(12) Cylinder 59 for press-fitting bush
Is operated, and the bush press-fitting tools 51C ₁ and 51 at the lowest stage are
C ₂ advances from the original position shown in FIGS. 5 and 6 toward the cylinder block 1, and the bush insertion holes 5A ₁ and 5B ₁
And 5A ₂ and 5B ₂ , respectively, and pass through the bushes 4C ₁ and 4C ₂ at the innermost bush insertion holes 5C ₁ and 5C, respectively.
After press-fitting into ₂ respectively, it returns to the position shown in FIG. 5 and FIG.

(13) The cylinder 56 is actuated, and the holder 53 descends to a position where the bush press-fitting tools 51B ₁ and 51B _{2 in} the middle stage are aligned with the axes L ₁ and L ₂ .

(14) Cylinders 59 for press-fitting bushes
Is operated, the middle-stage bush press-fitting tools 51B ₁ and 51B
₂ is the cylinder block 1 from the position shown in FIG. 5 and FIG.
Toward the bush insertion holes 5A ₁ and 5A ₂
After passing through the inside, press the bushes 4B ₁ and 4LB ₂ into the intermediate bush insertion holes 5B ₁ and 5B ₂ , respectively, and then return to the positions shown in FIGS. 5 and 6.

(15) The cylinder 56 is actuated, and the uppermost bush press-fitting tools 51A ₁ and 51A ₂ are moved along the axis lines L ₁ and L _2.
The holding body 53 descends to a position aligned with.

(16) Cushion for press fitting bush 59, 59
Is operated, the uppermost bush press-fitting tools 51A ₁ , 51
A ₂ advances from the position shown in FIGS. 5 and 6 toward the cylinder block 1 and presses the bushes 4A ₁ and 4A ₂ into the bush insertion holes 5A ₁ and 5A ₂ at the forefront, respectively. The position returns to the position shown in and the bush press-fitting ends.

(17) The cylinder 56 is actuated, and the bush press-fitting tools 51C ₁ and 51C _{2 at the} lowermost stage are moved along the axis lines L ₁ and L _2.
The holding body 53 moves up to the original position where it is aligned with.

(18) The cylinder block 1 for which the bush press-fitting has been completed is carried out from the position shown in FIGS. 5 and 6, and a new cylinder block is set at the above position.

(19) The above operations (1) to (18) are repeated.

Although the configuration and operation of an embodiment of the bearing member assembling apparatus according to the present invention have been clarified by the above description, according to the present embodiment, the phase matching units 11A to 11C are Bushings 4A ₁ ~ 4C ₁ , 4A ₂ ~
Since 4C bushing 4A ₁ ~4C ₁ the inner circumferential surface while chucking with three claws 12a _2, 4A ₂ ～4C ₂ is rotated, the bush 4A ₁ ~4C _1, 4A ₂ ~4C of ₂ accurate Since the centering of the oil hole 6 is surely performed and the phase of the oil hole 6 is adjusted by inserting the phase determining pin 32, accurate phase adjustment is possible.

Further, the bushes 4A _{1 to} 4C ₁ and 4A ₂ to
4C ₂ with the phase setting pin 32 inserted in the oil hole 6 thereof, the bush press-fitting tool 51A from the phase setting position.
_{1 to} 51C ₁ , 51A _{2 to} 51C ₂ are conveyed to the delivery position, and the bush holding end portion 63A as it is.
Since it is configured to be fitted to _{1 to} 63C ₁ and 63A _{2 to} 63C ₂ , there is no chance that the phase shift of the oil hole 6 occurs during transportation, and the position of the oil hole 6 can be aligned with high accuracy. The bushes 4A _{1 to} 4C ₁ and 4A ₂ to 4 in the state of being made.
It becomes possible to assemble C ₂ into the bearing insertion holes 5A _{1 to} 5C ₁ and 5A _{2 to} 5C ₂ .

Further, the bush holding unit 30 together with the phase adjusting units 11A to 11C is used for the bush 4A.
_{1 to} 4C ₁ , 4A _{2 to} 4C ₂ means for performing the phase determination of the oil holes 6 and the bushes 4A _{1 to} 4C ₁ and 4A _{2 to} 4C ₂ from the phase determining position to the bush press fittings 51A _{1 to} 51C ₁ ,
Since it also serves as a means for transporting 51A _{2 to} 51C ₂ to the delivery position, there is an advantage that the configuration of the entire apparatus can be simplified.

Further, six bushes 4A _{1 to} 4C ₁ ,
4A _{2 to} 4C ₂ are pressed by the bush holding unit 30 from the phasing position all at once to the bush press-fitting tools 51A _{1 to} 51.
C _1, is conveyed to the transfer position relative 51A ₂ ~51C _2, and bush press-fit tool 51A ₁ ~51C _1, 51A
_{2 to} 51C ₂ bush holding ends 63A _{1 to} 63C ₁ ,
Since it is configured to be fitted into 63A _{2 to} 63C ₂ at the same time, there is an effect that the bush press-fitting work efficiency is improved.

[Brief description of drawings]

FIG. 1 is a front view in which a part of a cylinder block to which a bearing member is assembled by a device for assembling a bearing member according to the present invention is omitted.

FIG. 2 is a sectional view taken along line II-II in FIG.

FIG. 3 is an enlarged sectional view of the bearing member taken along the line III-III in FIG.

FIG. 4 is an enlarged sectional view of the bearing member taken along line IV-IV in FIG.

FIG. 5 is a plan view showing an embodiment of an apparatus for assembling a bearing member according to the present invention.

FIG. 6 is a side view of the same.

FIG. 7 is a sectional view taken along the line VII-VII in FIG. 6;

FIG. 8 is a side view of a phase matching unit of the bearing member assembling apparatus according to the present invention.

FIG. 9 is a front view of the same.

FIG. 10 is a front view of a bush holding unit of the bearing member assembling apparatus according to the present invention.

11 is a sectional view taken along the line XI-XI in FIG.

[Explanation of symbols]

1 cylinder block _{4A 1 ~4C 1, 4A 2 ~4C} 2 bushing (bearing _{member) 5A 1 ~5C 1, 5A 2} ~5C 2 bearing insertion hole 6 bushing oil hole 10 phasing device 11A~11C phase alignment unit 12 chucks 13 motor 15 cylinder 30 bush holding unit 32 phasing pin 33A _{1 to} 33C ₁ , 33A _{2 to} 33C ₂ bush holder 35 cylinder 40 cylinder block positioning unit 50 bush press fitting device 51A _{1 to} 51C ₁ , 51A _{2 to} 51C ₂ bush press fitting ingredients 56 and 59 cylinder 61 engaging member 62 flange _{63A 1 ~63C 1, 63A 2 ~63C} 2 bushing holding end

Claims (8)

[Claims] 1. A device for assembling a ring-shaped bearing member having an oil hole by press-fitting the ring-shaped bearing member into a bearing insertion hole by a press-fitting means in a state where the oil hole has a predetermined phase, and holding the bearing member. Means for rotating the bearing member about its axis, a means for inserting a pin into the oil hole to phase the oil hole of the bearing member when the bearing member is rotated by the rotating means, and the oil hole for determining the phase. And a means for transporting the formed bearing member from the phasing position to the delivery position for the press-fitting means. 2. The means for transporting the bearing member, in which the oil holes are phased, from the phasing position to the delivery position for the press-fitting means, transports the bearing member while inserting the pin into the oil hole of the bearing member. Claim 1 characterized by the above.
A bearing member assembling apparatus as described above. 3. The means for deciding the phase of the oil hole also serves as means for conveying the bearing member from the phasing position to the delivery position.
A bearing member assembling apparatus as described above. 4. The press-fitting means is configured to be capable of reciprocating between a retracted position for receiving the bearing member and an advanced position for press-fitting the bearing member into the bearing insertion hole. Item 5. A device for assembling a bearing member according to any one of items 1 to 3. 5. The bearing member assembling apparatus according to claim 4, wherein the press-fitting means is configured to simultaneously receive a plurality of bearing members in the retracted position. 6. The assembly of the bearing member according to claim 4, wherein the press-fitting means is configured to press-fit a plurality of bearing members into the bearing insertion hole at the same time in the forward movement position. apparatus. 7. The apparatus for assembling a bearing member according to claim 1, wherein the bearing member is a bearing member for a balance shaft of an engine. 8. The engine includes two balance shafts each having three bearing insertion holes provided along the axial direction for each balance shaft. A plurality of bearing members are received at the same time, and two of the bearing members can be press-fitted into the bearing insertion holes in the advanced position,
7. The bearing member assembling device according to claim 6, wherein the bearing member assembling device is provided so as to be movable in a direction perpendicular to the forward direction.