JPH0611719Y2 - Assembly device for grooved bearings - Google Patents

Description

Detailed Description of the Invention A. Purpose of the Invention (1) Field of Industrial Application The present invention relates to an assembling device for press-fitting a grooved bearing into a bearing fitting hole of a work and fixing it with a set ring.

(2) Conventional technology Conventionally, as a device that automatically installs a grooved bearing in a bearing fitting hole having a notch opening formed in a transmission case, it is installed from below in a set ring installed in the bearing fitting hole. While positioning the raised claw,
The set jig is expanded by lowering a tapered jig that holds the grooved bearing from above, and the grooved bearing is press-fitted when the inside diameter of the set ring matches the inside diameter of the bearing fitting hole. It has been known.

(3) Problem to be Solved by the Invention However, in the above-mentioned conventional device, when press-fitting the grooved bearing, it is necessary to remove the claw downward at a delicate timing in order to avoid interference with the grooved bearing. It was At this time, if the timing of releasing the claws is too early, the set ring may close before the grooved bearing is press-fitted, and the set ring may be broken due to the forcefully inserted grooved bearing. there were. On the contrary, if the timing of releasing the claw is too late, the claw breaks due to interference with the grooved bearing, which is also a problem.

The present invention has been made in view of the above circumstances, and does not require delicate timing adjustment as in the conventional device,
An object of the present invention is to provide a device for assembling a grooved bearing capable of securely press-fitting and fixing the grooved bearing in a bearing fitting hole of a workpiece.

B. Constitution of the Invention (1) Means for Solving the Problem In order to achieve the above object, the present invention presses a grooved bearing into a bearing fitting hole formed in a work with a press-in punch, and In a device for assembling a grooved bearing fixed by a set ring mounted in a bearing fitting hole; a holder for holding the grooved bearing in the press-fitting punch; and an opening outside the opening of the set ring. A guide member for positioning and a taper member inserted inside the opening of the set ring that has been positioned are attached, and after the set ring is expanded by this taper member,
It is characterized in that the grooved bearing is press-fitted into the bearing fitting hole.

(2) Action According to the grooved bearing assembling device of the present invention having the above-described structure, when the press-fit punch having the grooved bearing held in the holder is brought close to the bearing fitting hole of the work, first, the guide member Contacts the opening of the set ring mounted in the bearing fitting hole to position the opening. Then, a taper member is inserted into the positioned opening of the set ring, and the opening is expanded to the inner diameter of the bearing fitting hole. From this state, the grooved bearing held by the holder is pressed by the press-fitting punch and press-fitted into the bearing fitting hole. When the taper member is removed together with the press-fit punch, the set ring contracts to fix the grooved bearing in the bearing fitting hole.

(3) Example An example of the present invention will be described below with reference to the drawings.

1 to 3 show one embodiment of the present invention. FIG. 1 is an overall side view of the same, FIG. 2 is a side view of a press-fitting mechanism, and FIG. 3 is a front view of the same.

As shown in FIG. 1, a slide base 4 is supported by a guide cylinder 3 slidably guided by guide shafts 2 provided upright on both sides of a base 1. The slide base 4 is not shown. It is adapted to be driven in the vertical direction by a cylinder rod 5 connected to the cylinder.

A receiving plate 6 for supporting a mission case W, which is a work, is attached to the center of the base 1 through a column 7. The receiving plate 6 is erected from the base 1 through an opening 6a formed in the receiving plate 6. Inside the guide member 8, a slide shaft 10 having a receiving seat 9 at the upper end is vertically slidably mounted. The slide shaft 10 has a long hole 10
The bearing seat 9 fixed to the upper end of the bearing seat 9 is urged upward by a spring 12 in a state where it is prevented from rotating by a bolt 11 engaging with a, and is attached to the lower surface of a bearing fitting hole H formed in the mission case W. It comes to abut.

On the other hand, a slide member 14 is vertically slidably attached to the outer periphery of a guide shaft 13 hanging from the lower surface of the slide base 4 with a spring 15 urged downward. The pressing plate 16 that can come into contact with the upper surface of the mission case W is fixed.

Further, a press-fitting mechanism 18 is mounted on the lower surface of the support base 17 fixed to the slide base 4 so as to face the bearing fitting hole H of the mission case W. 2 and 3
As shown in detail in the drawing, the press-fitting mechanism 18 includes a press-fitting punch 19 for inserting the grooved bearing B,
A cylindrical holder 20 for holding the grooved bearing B is projectingly provided at the lower end thereof. Inside the holder 20, the shoe 2 is urged by a spring 21 in a protruding direction.
2 is attached, and the grooved bearing B is held by the frictional force acting between the tip of the shoe 22 and the inner ring.

A bracket 23 is fixed to the side surface of the press-fitting punch 19, and a pair of guide bars 24 as guide members made of wire rods bent in a V shape are fixed to both sides of the bracket 23. Further, between the pair of guide bars 24 of the bracket 23, a taper projection 25 tapering downward is fixed.

Next, the operation of the embodiment of the grooved bearing assembling apparatus according to the present invention having the above-mentioned structure will be described.

As shown in FIG. 1, first, the transmission case W is positioned on the receiving plate 6 so that the bearing fitting hole H abuts on the upper surface of the receiving seat 9, and as shown in FIG. The attached bearing B is held by the holder 20 of the press-fitting mechanism 18. At this time, as shown in FIG. 3 (B), a C-shaped set ring R is previously mounted in the set ring groove E formed in the inner surface of the bearing fitting hole H, and the opening end R ₁ thereof is the bearing. Bulging portion H _{1 of} fitting hole H
It is located within the range indicated by arrow A. That is, the opening end R ₁ of the set ring R is shown in FIG.
As shown in (b), it is located within the range between the expanded lower ends of the pair of guide bars 24.

When the cylinder rod 5 is driven from this state to lower the slide base 4, the mission case W pressed from above by the pressing plate 16 is pressed against the receiving plate 6, and at the same time, the press-fitting mechanism 18 is pressed from above to the bearing fitting hole H. Approach. Then, as shown in FIGS. 5 (A) and 5 (B), the outside of the opening end R ₁ is brought into contact with the guide bar 24 and guided, whereby the set ring R rotates in the set ring groove E, and this opening is opened. The end R ₁ faces the tip of the tapered projection 25 (see FIGS. 7B and 7C). When the press-fitting mechanism 18 is further lowered, as shown in FIGS. 6A and 6B, the tapered projection 25 is inserted inside the opening R ₁ separated from the guide bar 24, and the expanded set ring R is set. It is completely pushed into the inside of the ring groove E (see FIG. 7C (D)). When the press-fitting mechanism 18 is further lowered from this state, the grooved bearing B pressed by the press-fitting punch 19 is press-fitted into the bearing fitting hole H without interfering with the set ring R, and its lower surface abuts on the receiving seat 9. Stop at. Subsequently, when the press-fitting mechanism 18 is raised, the grooved bearing B is separated from the holder 20 and remains inside the bearing fitting hole H. At the same time, the set ring R reduces its diameter by its elastic force while being guided by the tapered protrusion 25 through the opening R ₁ , and automatically fits into the fixed groove B ₁ formed on the outer circumference of the grooved bearing B.

The embodiments of the grooved bearing assembly device according to the present invention have been described above in detail. However, the present invention is not limited to the above-mentioned embodiments, and deviates from the present invention described in the scope of utility model registration claims. Without doing so, various small design changes can be made.

For example, when holding the grooved bearing B in the holder 20, the attraction force of the magnet may be used instead of the friction force of the shoe 22. Further, instead of using the guide bar 24 formed of a wire material as the guide member of the set ring R, a cam formed of a plate material or the like may be used.

C. Effect of the Invention According to the grooved bearing assembling device of the present invention described above, the holder for holding the grooved bearing and the set ring are positioned in the press-fitting punch that press-fits the grooved bearing into the bearing fitting hole of the workpiece. Since the guide member and the taper member that expands the set ring are attached, the grooved bearing is pressed in with the set ring completely expanded, and this grooved bearing can be securely held without interfering with other members. Is pressed into the bearing fitting hole.

Further, since the guide member and the taper member are attached to the press-fitting punch and driven integrally, as compared with the conventional press-fitting punch and the claw that is driven while adjusting the timing,
Not only is the drive source simplified, but there is no need for troublesome timing adjustment.

[Brief description of drawings]

FIG. 1 is an overall side view of an assembly device for a grooved bearing according to an embodiment of the present invention, FIG. 2 is a side view of a press-fitting mechanism, FIG. 3 is its front view, FIG. 4 (A), and FIG. 6 (A) and 6 (A) are side views of the press-fitting mechanism showing the operation of the present invention, and FIGS. 4 (B), 5 (B) and 6 (B) are the same operation of the present invention. FIG. 7 is a plan view of the bearing fitting hole portion, and FIGS. 7 (A), (B) and (C) are front views of the press-fitting mechanism similarly showing the operation of the present invention. 19 ... press-fit punch, 20 ... holder, 24 ... guide bar (guide member), 25 ... taper member, W ... mission case (work), H ... bearing fitting hole,
B: Grooved bearing, R: Set ring, R ₁
Aperture

Claims (1)

[Scope of utility model registration request] 1. A grooved bearing (B) is press-fitted into a bearing fitting hole (H) formed in a work (W) by a press-fitting punch (19), and the grooved bearing (B) is inserted into the bearing fitting hole (H). In a device for assembling a grooved bearing fixed by a set ring (R) attached to H); a holder (20) for holding the grooved bearing (B) in the press-fitting punch (19), and a set ring (R). A guide member (24) for engaging with the outside of the opening (R ₁ ) of the set ring (R ₁ ) to position the opening (R ₁ ), and inside the opening (R ₁ ) of the positioned set ring (R). The taper member (25) to be inserted is attached, and the set ring (R)
After expanding the groove, the grooved bearing (B) is press-fitted into the bearing fitting hole (H).