JP2874516B2 - Multi-model component press-fitting device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-model component press-fitting device.

[0002]

2. Description of the Related Art An aluminum converter housing, which is a case of an automatic transmission used in an automobile, has four dowel pins (hereinafter simply referred to as pins), an oil seal and a differential oil seal (hereinafter simply referred to as an oil seal). One place is inserted.

FIG. 1 is a front view of a converter housing.
6, in FIG. 17, which is a cross-sectional view, the converter housing is denoted by reference numeral 4, the pins are denoted by reference numerals 1a to 1d, and the oil seals are denoted by reference numerals 2 and 3, respectively.

Conventionally, when these pins and oil seals are pressed into a converter housing, a press-fitting jig as shown in FIG. 18 is used.

In FIG. 18, a converter housing (hereinafter, referred to as a work) 4 is positioned on a pallet 6 via a locating pin (not shown), and then the pallet is positioned on a jig main body 7. 9 by actuation.

Then, the pin press-fit cylinders 10a, 10a
b is driven to insert the pins 1a, 1c and the like into the work 4 from below. Similarly, oil seal cylinders 11a, 11b
To press the oil seals 2 and 3 into predetermined positions of the work. In FIG. 18, only a part of the pin press-fit cylinder is shown to avoid complexity.

Prior to press-fitting, a pin and an oil seal are respectively manually mounted on a pallet or a component mounting portion provided at a tip of a movable portion of each cylinder by an operator in advance.

[0008]

In a conventional press-fitting jig, press-fitting cylinders are provided for each press-fitting position, so that the cost is increased and the design of the work is changed, so that a pin or oil seal is required. Each time the press-fitting position is changed, a large modification of the jig is required.

[0009] In addition, for each model it is different, because the press-fit position of the pin and the oil seal is different slightly, If you do not easily a dedicated press-fit jig of different models worth, problems can not be a quick deal is is there.

Therefore, the present invention provides a component press-fitting device for other models, which can use a small number of press-fitting cylinders and can quickly press-fit components even when the type of work, design change, and the like are changed. The purpose is to:

[0011]

To achieve the above object, the present invention has the following constitution.

(1). A positioning means for positioning and fixing the work, an XY table movable in a horizontal plane, a hollow first shaft rotatably about a vertical axis, coaxially and vertically movable, and a first shaft. A substantially C-shaped press-fit frame fixed to the lower end of the shaft, a second shaft slidable in the axial direction within the first shaft and reciprocated by the press-fit cylinder, and a lower end of the second shaft; the provided first holding means and the press-fit pressing part upper holding the press-fitting part, the lower end inside the further press-fitting frames respectively press-fitting pressing subordinates, before
At the lower end of the press-fitting frame, a second holding means for holding the second press-fitting component is provided (claim 1 ).

[0013]

( 2 ). In (1), wherein a first supplying device for supplying the first component in the first holding means, was to have a second supply device for supplying the second component to said second holding means (claim 2 ).

[0015]

The press-fitting frame for performing the press-fitting operation is movable in a horizontal plane together with the press-fitting cylinder.

[0016]

Reference Example First, a reference example for facilitating understanding of the embodiment will be described. In FIG. 1, reference numeral 12 denotes positioning means for the work 4, on which the work 4 is positioned and fixed. The positioning means 12 is immobile until the component press-fitting step is completed.

An XY table 13 is located in the Z-axis direction, that is, on the vertical direction and above the positioning means 12. The XY table 13 has an XY table orthogonal to the Z axis.
The positioning means 12 can be moved to an arbitrary position in a plane, that is, in a horizontal plane.

A sleeve 14 is supported on the XY table 13 via bearings 15a and 15b. Sleeve 1
4, an intermediate sleeve 16 is fitted to the inner diameter portion.
The keys 17a and 17b are interposed between the inner diameter portion of the sleeve 14 and the outer shape portion of the intermediate sleeve 16, so that both are integrated.

Inside the intermediate sleeve 16 is a hollow first
The shaft 18 is inserted. The first shaft 18 is constituted by a ball spline shaft, and is prevented from rotating with respect to the intermediate sleeve 16, but can move up and down freely.

At the lower end of the first shaft 18, a press-fit frame 19 having a substantially C-shape is fixed.

The shaft center of the first shaft 18 and the press-fit frame 1
The second shaft 20 penetrates the upper end of the second shaft 9. This second shaft 2
A press-fit cylinder 21 is provided at the upper end of the zero. By driving the press-fit cylinder 21, the second shaft 20 is moved up and down.

At the lower end of the second shaft 20, there is provided a first holding means 22 for holding the pin 1 as a first press-fitting part. The lower surface of this first holding means 22 is
A plate 23 is fixed inside the lower end portion of the press-fit frame 19, and the upper surface of the plate forms a press-fit pressing portion lower portion 29. The plate 23 and the second axis are opposed to each other on an axis OO parallel to the Z axis.

A pulley 24 is coaxially fixed to the upper end of the sleeve 14. The pulley is driven to rotate by a belt 25.

One end of an arm 26 is fixed to the upper portion of the first shaft 18, and the other end of the arm 26 is connected to a movable portion of a lifting cylinder 27. The lifting cylinder 27 is fixed on the XY table 13.

In press-fitting the pin, the work 4 is sandwiched between the pin 1 held by the first holding means 22 and the lower part 29 of the press-fitting press, and the pin is press-fitted.

When press-fitting the oil seal, the force of the press-fitting cylinder 21 is used, and the work and the jig are sandwiched between the press-fitting press upper portion 28 and the press-fitting press lower portion 29.
Press in the oil seal.

In any case, it is necessary to freely move the first holding means 22 and the plate 23 to a predetermined position on the work. However, the XY table 13 can be moved in both the X-axis and the Y-axis directions. Since it can be moved by a desired amount, it can be moved to an arbitrary position, and a single press-fitting cylinder 21 can press-fit parts.

At this time, since the shape of the press-fitting frame is C-shaped and the intermediate portion has a concave shape, it is possible to cope with the case where the press-fitting portion of the component has escaped to the inside of the work.

Further, even when there is an obstacle in a part of the work, the obstacle on the work can be avoided by driving the belt 25 and rotating the press-fit frame 19.

By making the lifting cylinder 27 function, it is possible to cope with a change in the thickness of the work.

[0031] Procedure of the pin press fitting, after moving the press-frame in position, to abut against the pin 1 held by the holding means 22 to the press-fitting position of the workpiece. The contact load at this time corresponds to the own weight of the press-fit frame 19, and since it is a light load, no unreasonable load acts on the work.

Next, the lifting cylinder 27 is set in the neutral state, and the press-fitting cylinder 21 is operated to lower the second shaft 20. Then, the first shaft 18 rises due to the reaction force, the work is sandwiched between the pin 1 and the lower part 29 of the press-fitting press, and the pin 1 is gradually pressed into the work.

That is, only the force contributing to press-fit acts on the work, and the pin is press-fitted without giving excessive force. The press-fitting of the oil seal is also performed according to a similar procedure.

Example 1 Configuration In FIG. 2 illustrating the overall configuration of the device, reference numeral 35 denotes a frame, on which the main part of the device is configured.

The lower part of the frame 35 has a cylinder 3
A lifter 37 that is moved up and down by 6 is provided.
The work 4 is mounted on a pallet 38 on the lifter 37.

[0036] upper part of the frame 35 has rails 39 extending in the Y direction is provided, Y table 4 1 integral with the moving element 40 is fitted to the rail 39.

Furthermore, the upper surface of the Y table 4 1,
A rail 42 extending in the X direction is fixed, and a mover 43 integrated with an XY table 44 is fitted to the rail 42.

FIG. 3 is a plan view showing these relationships. In FIG. 3, the Y table 41 includes a cylinder 48.
The XY table 44 is moved in the X direction by the cylinder 49.

Therefore, the XY table 44 is
As a result, when viewed from the upper workpiece, the workpiece is arbitrarily moved in the X and Y directions.

A lifting cylinder 45 is fixed to the XY table 44. One end of an arm 46 is connected to a movable portion of the lifting cylinder 45, and the other end of the arm is fixed to a first shaft 47.

Hereinafter, description will be made with reference to FIG. 4 showing a cross section of the first shaft 47. The first shaft 47 is a ball spline shaft, and is fitted to the intermediate sleeve 50.
The intermediate sleeve 50 is fitted to the sleeve 52 via a key 51 for preventing rotation.

The sleeve 52 is connected to the X through bearings 53 and 54.
It is supported by a support member 55 integral with the Y table 44.

A pulley 56 is fixed to the upper end of the sleeve 52, and a belt 57 is hung on the pulley. The other end of the pulley 56 is
And a pulley 60 attached to a shaft of a speed reducer 59 connected to the pulley 60. Thus, the first shaft 47 can rotate at an arbitrary angle using the servomotor 58 as a drive source.

In the hollow portion of the first shaft 47, a second shaft 61 is prevented from rotating by a key 62, and then in the Z-axis direction (vertical direction).
And is slidably fitted to
Can be moved.

At the lower end of the first shaft 47, a substantially C-shaped press-fit frame 63 is provided. The basic function of the press-fit frame 63 is the same as that of the press-fit frame described in FIG.

By moving the XY table 44 and rotating the press-fit frame by the servo motor 58 for press-fitting the component into the work, the press-fit frame is positioned at an optimum position which does not interfere with an obstacle at the time of component press-fitting. be able to.

FIG. 5 shows various positions of the press-fitting frame.
3h.

As shown in FIGS. 6 and 7, a first holding means 64 for holding the pin 1 is provided at the lower end of the second shaft 61. The first holding means 64 holds the pin 1 by the pressure contact force of the tip ball of the ball plunge <br/> catcher 100.

In FIG. 8, at the lower end of the press-fit frame 63, three sets of second holding means 65, 66, 67 for holding an oil seal as a second press-fitting part are provided.

The second holding means 65 includes a cylindrical shaft portion 65a fitted to the oil seal, a holding portion 65b for slidably supporting the shaft portion, and a direction in which the shaft portion 65a projects from the holding portion 65b. to consist extensible spring 65c such that urges, pop-out from the holding portion 65b of the shaft portion 65a by the elasticity of the spring, the stepped portion subjected to the shaft portion 65 a abuts against the stepped portion of the holding portion 65b Has been blocked by

The other second holding means 66 and third holding means 67
As for, only the diameter of the shaft part is different, the basic configuration is
Since it conforms to the configuration of the second holding means 65, the shaft portions 66a, 6
Reference numerals 7a, holding portions 66b, springs 66c, 67c, and the like are denoted by reference numerals, and description thereof is omitted.

An oil seal taken from a second supply device for supplying an oil seal is mounted on the shaft 65a of the second holding means, and is mounted on a jig for mounting the oil seal.

The oil seal mounted on the jig is pressed into the work by the function of the press-fit frame. These operations will be described later.

Example 2 Configuration corresponding to claim 2 (i). First Supply Device First, a first supply device that supplies the pins 1 to the first holding means 64 will be described with reference to FIG.

The main part of the first supply device 69 is formed on a holding plate 71 fixed to the upper part of the press-fit frame 63 via a bracket 70.

The holding plate 71 is located below and in an intersecting manner below the first holding means 64, and an opening 72 is formed in a range where the first holding means 64 is allowed to move downward. Have been.

The slide piece 7 which can take two modes, a first position for closing the opening 72 and a second position retracted from the opening 72.
3 is formed on the holding plate 71. The slide piece 73 is driven by a cylinder 74.

In the first position, the stopper plate 101 implanted on the slide piece 73 comes into contact with the front end stopper 102 fixed to the groove of the holding plate 71. Second
In the position, as shown in FIG. 6, the stopper abutment 101 is attached to the rear end stopper 103 fixed to the groove of the holding plate 71.
Abut.

A hole with a bottom is formed in the center of the slide piece 73, and when in the second position,
The lowermost pin of the many pins 1 stacked in the supply tube 75 is dropped by its own weight.

In this state, when the cylinder 74 is driven and the slide piece 73 shifts to the first position, the pin 1 in the hole shifts to the first position together with the slide piece 73, and the first position is set. In the above, the central axis of the pin 1 in the hole coincides with the axis of the pin holding hole formed in the first holding means 64.

In this state, the first holding means 64 is lowered,
Ball plunger 100 configured in first holding means 64
By functioning, the pin 1 on the slide piece 73 can be held by the first holding means 64.

Here, a part of the lower surface of the first holding means 64 and designated by reference numeral 110 is a slide piece 73 to avoid interference with the slide piece 73 when holding the pin 1.
Is a U-shaped groove which is large enough to be immersed and extends in the radial direction. In the slide piece 73, a portion corresponding to the remaining portion 111 of the first holding means 64 is cut off in a stepped manner to avoid interference with the remaining portion.

[0063] Hereinafter, a slide piece 73 is reciprocated, first state position, only by performing the operation for switching the second state position, as long as there is a pin in the supply tube 75, the pin 1 can be one-up .

As shown in FIG. 8, the pin 1 thus held by the first holding means 64 is moved in the X and Y directions by the XY table 44, and the operation of the lifting / lowering cylinder 45 is performed.
Further, the work 4 fixed on the lifter 37 is rotated by the rotation operation of the press-fit frame 63 by the servo motor 58, or the like.
Can be moved to the predetermined pin press-fitting position.

When the moving operation is completed, the press-fitting cylinder 21
The pin 1 is press-fitted into the work 4 by an operation similar to the press-fitting operation described in the first embodiment.

FIG. 8 shows a state in which the work 4 is sandwiched between the plate 68 provided inside the lower end of the press-fit frame 63 and the first holding means 64 holding the pin 1, and the pin is press-fitted.

Depending on the type of work, the pin press-fitting position may be located deep in the work 4 as shown in FIG.
In such a case, as shown in FIG.
An auxiliary pressing member 86 that comes into contact with 8 is configured in the lifter 37.

In this manner, the pin is pressed into the work 4 and the pin 1 between the tip of the auxiliary pressing member 86 and the first holding means 64 without interfering with the edge of the work 4. Can be.

(Ii). About the 2nd supply device The 2nd supply device which supplies the oil seal 2 to any of the 2nd holding means 65, 66, 67 is shown in FIG.
As shown at 78, the frame 3 corresponds to the second holding means.
Three sets are provided on a stand 79 integrated with the fifth unit 5.

The basic structure of each of the second supply devices 76, 77, and 78 has commonality, and they are all the same. Therefore, the second supply device 78 will be described as a representative example.

As shown in FIG. 10 and FIG. 11, the second supply device 78 has a U-shaped groove 80, and a support 81 fixed to a base 79, and mounted in the U-shaped groove of the support 81. A holding rod 82, a slide piece 83, a cylinder 84 for driving the slide piece, and the like.

As shown in FIG. 10, a number of oil seals 2 are mounted on the holding rod 82 by an operator. Thereafter, the holding rod 82 is mounted in a U-shaped groove 80 formed in a bent portion of the support base 81, and at this time, is held by being held by a flange 85.

In this state, the large number of oil seals 2 held by the holding rods fall by their own weight, and the lowermost sheet falls into the hole formed in the slide piece 83 as shown in FIG. I do.

Next, when the slide piece 83 is pushed out in the Y direction by operating the cylinder 84, the lowermost oil seal in the slide piece 83 is moved together with the slide piece 83 as shown in FIG.
, And one piece can be taken on the right end on the table 79.

As shown in FIG. 12, the oil seal 2 taken out on the stand 79 is driven by the XY table 44, the lifting cylinder 45, etc., so that the second holding means provided at the lower part of the press-fit frame 63 is provided. 66 is attached to the shaft portion 66a.

Oil seal 2 mounted on shaft 66a
Is transferred to the small-diameter holding portion of the press-fitting shaft 88 formed on the lifter 37. Alternatively, the oil seal mounted on the other shaft portions 65a, 67a is a large-diameter holding portion of the press-fit shaft 88,
It is transferred to the press-fit shaft 87 respectively.

The press-fit shafts 88, 87, etc. are provided corresponding to the press-fit positions of the oil seal on the work.

Here, according to FIGS. 8 and 13, the oil seal 2 of the shaft 66a is attached to the small-diameter holding portion 88a of the press-fit shaft 88.
Will be described. In principle, this is the same as the transfer of the oil seal mounted on the shaft portion 65a to the press-fit shaft 87. The small-diameter holding portion 88a and the shaft portion 66a have the same outer dimensions.

The shaft portion 66 a is brought into a state in which it is aligned with the axis of the press-fit shaft 88 by the function of the XY table 44.
Next, the press-fit frame 6 is moved by the operation of the lifting cylinder 45.
As the shaft 3 descends, the shaft 66a becomes smaller in diameter with the small-diameter holding portion 88a.
Abuts the top of

Further, when the press-fit frame 63 descends,
The shaft 66a is buried against the elasticity of the spring 66a,
When the oil seal 2 is completely buried, the transfer of the oil seal 2 to the small-diameter holding portion 88a ends.

Oil seal 2a mounted on shaft 67a
Is transferred to the large-diameter holding portion 88b. Here, the inner diameter of the large diameter holding portion 88b is the same as the outer diameter of the oil seal 2a attached to the shaft portion 67a.

The large-diameter holding portion 88b is urged upward by an extensible spring 89, and the large-diameter holding portion 88b is urged upward by this urging. Blocked by section 90.

As the press-fit frame 63 descends, the shaft 67a is buried.
The oil seal 7a has been transferred to the inner diameter of the large-diameter holding portion 88b.

The process of press-fitting the oil seal will be described. 14 and 15, with the axis O ₁ -O ₁ as the center, the small-diameter holding portion 88a and the oil seal 2 attached thereto are pressed into the work on the right side, and the large-diameter holding portion 88b and the left side on the left side. The state where the mounted oil seal 2a is pressed into the work is shown.

The press-fitting shaft 88 is shown vertically displaced about the axis O ₁ -O ₁ because the press-fitting position with respect to the work is different. However, the press-fitting shaft 88 is actually left-right symmetric.

The press-fitting shaft 88 has a small-diameter guide shaft 91 from the middle.
The guide shaft 91 is configured to be vertically movable within a sleeve 92 provided on the lifter 37.

The press-fit shaft 88 has pins 93, 9 in the diameter direction.
4 protrude, and between these pins and the lifter 37, elastic springs 95 and 96 are hung. By the action of these springs, a downward force acts on the press-fit shaft 87.

The downward movement of the press-fit shaft 88 by the action of these springs is prevented by the lower end of the press-fit shaft 88 abutting on the stopper 97 until the oil seal is transferred to the press-fit shaft 88. .

For example, when mounting the oil seal 2, the press-fit frame 63 is moved to a predetermined press-fitting position, and the first holding means 64 is brought into contact with the work 4 in accordance with the press-fitting operation of the pin 1 described above. Then, the press-fit cylinder 21 is operated to lower the second shaft 61.

Then, the plate 68 comes into contact with the guide shaft 91, and further, the press-fit shaft 88 against the contraction force of the spring 95.
Rises, and finally the oil seal 2a
Press-fit. In this process, the large-diameter holding portion 88b
Is pressed by the oil seal insertion edge of the work according to the press-fitting of the oil seal so as not to interfere with the work and interfere with the insertion of the oil seal, and descends against the elasticity of the spring 89.

When the press-fitting is completed, the press-fitting cylinder 21 is operated to raise the second shaft 61. Then, press-fit shaft 8
8 is released from the press-fit frame, and the press-fit shaft 88 moves to the home position regulated by the stopper 97 by the action of the spring 95.

Press-fitting of other oil seals is also performed by a process according to the above description.

[0093]

According to the present invention, it is possible to use a small number of press-fitting cylinders, and to quickly press-fit parts even when the type of work or design is changed.

[Brief description of the drawings]

FIG. 1 is a reference example of the present invention and is a view schematically illustrating a main part of a component press-fitting device for other models.

FIG. 2 is a diagram illustrating the entirety of the component press-fitting device for other models according to the present invention.

FIG. 3 is a plan view of a press-fitting device for other models according to the present invention.

FIG. 4 is a first view of a press-fitting device for other models according to the present invention.
It is sectional drawing of a shaft part.

FIG. 5 is a view for explaining an aspect of a position change in the other-model-compatible component press-fitting device according to the present invention.

FIG. 6 is a diagram illustrating a first supply device according to the present invention.

FIG. 7 is a diagram illustrating a first holding unit according to the present invention.

FIG. 8 is a diagram illustrating a second holding unit according to the present invention.

FIG. 9 is a diagram illustrating a state of the machine when a pin is press-fitted.

FIG. 10 is a perspective view illustrating holding means of an oil seal.

FIG. 11 is a diagram illustrating a process of taking one oil seal.

FIG. 12 is a diagram illustrating a second holding unit.

FIG. 13 is a sectional view of a press-fit shaft.

FIG. 14 is a diagram illustrating a process of press-fitting an oil seal.

FIG. 15 is a partially enlarged view illustrating a press-fitting process of an oil seal.

FIG. 16 is a front view of a converter housing as a work.

FIG. 17 is a front view of a converter housing as a work.

FIG. 18 is a diagram illustrating a conventional technique.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 12 Positioning means 13 XY table 18 1st axis 19 Press-fit frame 22 1st holding means 28 Above press-in press part 29 Below press-in press part 65, 66, 67 2nd holding member

Continuation of the front page (72) Inventor Yoshio Inoue 5-33-8 Shiba, Minato-ku, Tokyo, Mitsubishi Motors Corporation (56) References JP-A-6-114644 (JP, A) Japanese Utility Model Showa 49 -149387 (JP, U) Fully open 63-127839 (JP, U) Fully open 63-144135 (JP, U) (58) Fields investigated (Int. Cl. ⁶ , DB name) B23P 19/02

Claims (2)

(57) [Claims] 1. A device for press-fitting a part into a predetermined position of a work, a positioning means for positioning and fixing the work, an XY table movable in a horizontal plane, and a coaxially rotatable and vertical axis. A hollow first shaft supported so as to be vertically movable, a substantially C-shaped press-fit frame fixed to a lower end of the first shaft, and a press-fit that is slidable in the first shaft in the axial direction. It has a second shaft reciprocated by a cylinder, and a lower end of the second shaft is provided with a first holding means for holding the first press-fitted component and a press-fitting presser. A multi-model component press-fitting device, each having a lower portion of a pressing portion, and a second holding means for holding a second press-fitted component at a lower end portion of the press-fit frame. 2. The apparatus according to claim 1, further comprising a first supply device for supplying a first component to said first holding means, and a second supply device for supplying a second component to said second holding means. A featured multi-part press-fitting device.