JPH0592330A - Ring fitting device - Google Patents

Abstract

PURPOSE:To securely fit a ring to a shaft, in a device for fitting a C-shaped ring for fixing a bearing to the shaft, by pressing the ring carried on a carrying rail against the carrying rail with a pressing member that has been energized downward by an elastic body. CONSTITUTION:In the retracted end position of a fitting plate 27, the bent part 50 of a pressing member 41 is abutted on a cam roller 54, and the pressing member 41 is turned upward against a spring 48 so as to be shunted. When a ring feeding mechanism B is operated, the lowest ring out of a large number of stacked rings 3 is retained in the cutting recessed part 65 of a transporting body 61 and is cut out. Then, when a pressing cylinder 31 is moved backward and forward, the fitting plate 27 is moved forward, and at the same time the bent part 50 is separated from the cam roller 54 and the pressing member 41 is turned downward by the spring 48, and the ring 3 is elastically pressed against the cutting recessed part 65. In this state, the ring 3 is smoothly carried on a carrying rail 22 up to a transportation stage part 25, and is fitted to a shaft 1.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ring assembling device, and more particularly to a ring for assembling a substantially C-shaped ring used for fixing a bearing mounted on a shaft to the shaft. The present invention relates to an assembling device.

[0002]

2. Description of the Related Art Conventionally, as shown in FIG. 8, when a bearing (2) mounted on a shaft (1) is fixed, a substantially C-shaped bearing as shown in FIG. The bearing (2) was fixed by assembling the shaped ring (3).

10 to 12 show a conventional ring assembling apparatus. 10 to 12,
Reference numeral (4) is a transfer rail having side walls (4b) and (4b) provided on both sides of the bottom wall (4a), and the transfer rail (4) is installed on the transfer line of the ring (3). The shaft (1) is held upright at a position near the outside of the front end of (4) by appropriate means. Reference numeral (5) is an assembly plate linearly movable back and forth along the transfer rail (4) on the transfer line, and the assembly plate (5) is an appropriate pusher installed at a fixed position. It is attached and fixed to the tip of the pushing rod (7) of the cylinder (6). (8) is a transfer body which is arranged so as to be capable of linear reciprocal movement orthogonal to the above-mentioned transport rail (4), and (9) is a cross-section approximately C in which a slit-shaped opening (10) is formed in the longitudinal direction of the peripheral surface. With a V-shaped supply tube,
The rings (3) are stacked and accommodated in the supply cylinder (9) in multiple stages.

The supply cylinder (9) is held upright in the moving path of the transfer body (8) by an appropriate means, and a positioning member (1) having a convex cross section is provided in the slit-shaped opening (10).
1) is attached and the positioning member (11) aligns the ring (3) in a fixed direction. The transfer body (8) is formed with cutout recesses (12) which are open on both sides so that one ring (3) can be cut out, and among the rings (3) stacked and accommodated in the supply cylinder (9). , When the lowermost ring (3) is located in the cutout recess (12),
The transfer body (8) moves, the lowermost ring (3) is cut out, and the ring (3) is positioned and held at a position near the rear end of the transport rail (4). At this time, the rings (3) stacked and accommodated in the supply cylinder (9) are stacked and held on the rear upper surface (13) of the transfer body (8).

When assembling the rings (3) on the shaft (1), the rings (3) stacked and accommodated in multiple stages in the supply cylinder (9) are cut out one by one. That is, the lowermost ring (3) of the rings (3) supplied to the supply cylinder (9).
Is held in the cutout recess (12) of the transfer body (8),
The transfer body (8) advances, and the ring (3) is held on the same plane as the transport rail (4) at a position near the rear end of the transport rail (4), as shown in FIG. Then, the pushing rod (7) of the pushing cylinder (6) is projected, and the ring (3) on the cutout recess (12) of the transfer body (8) is pushed by the assembly plate (5), and the transport rail (4) is pushed. ) Is transported over.

Then, both ends (3a) of the ring (3)
After the (3a) abuts on a predetermined shaft portion of the shaft (1), the pushing cylinder (6) pushes the ring (3) from a direction orthogonal to the shaft (1) to spread the ring (3), and then the ring (3) is pushed. The ring (3) is fitted to the predetermined shaft portion of the shaft (1) by utilizing the elastic restoring force. When the assembly of the ring (3) to the shaft (1) is completed, the pushing rod (7) of the pushing cylinder (6) is
Retracts and the assembly plate (5) is held at the original retracted end position. Then, the transfer body (8) is retracted, and the cutout recess (12) is held at a position directly below the supply cylinder (9).
The next ring (3) is positioned and retained in the cutout recess (12). The same operation is repeated thereafter.

[0007]

According to the above-mentioned conventional ring assembling apparatus, while the ring (3) is being transported on the transport rail (4), the side wall (4) of the transport rail (4) is being transported.
b) When contacted with the inner surface of (4b), the frictional resistance causes a positional displacement in the circumferential direction as shown in FIG. 12. Therefore, when the ring (3) is pushed by the pushing cylinder (6), the ring There is a problem that one end (3a) of (3) collides with the shaft of the shaft (1) and the ring (3) cannot be assembled to the shaft.

The present invention has been proposed in view of the above problems, and it is an object of the present invention to provide a ring assembling apparatus capable of reliably preventing the ring from being displaced in the circumferential direction at the time of assembling the ring. Has a purpose.

[0009]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention is directed to a transport rail in which a substantially C-shaped ring is transportable on a transport line, and linearly along the transport rail. An assembly plate arranged so as to be able to reciprocate back and forth,
A pressing member that is rotatably attached to the front end of the assembly plate and that has a substantially U-shaped pressing portion that can press the ring against the transport rail by the biasing force of the elastic body, and the assembly plate on the transport line. Member disposed in the movement path of the assembly plate and at the retracted end position of the assembling plate, a part of the pressing member collides with the pressing member to rotate and retract upward against the biasing force of the elastic body. It consists of and.

[0010]

The ring carried on the carrying rail is elastically pressed against the carrying rail by the pressing member which is always urged downward by the elastic body, so that the ring comes into contact with the inner surface of the carrying rail when carrying the ring. However, even if the ring is not displaced in the circumferential direction, the ring can be securely attached to the shaft.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The following is a description of an embodiment of the assembly apparatus according to the present invention, with reference to FIGS.

1 to 7, (A) is an assembly mechanism for the ring (3), and (B) is a supply mechanism for supplying the ring (3) to the assembly mechanism (A).

In the assembly mechanism (A), reference numeral (21) is a substrate, and a transport rail (22) is installed along the ring transport line on the substrate (21). Transport rail (22)
Includes a rail portion (24) horizontally projecting forward from the upper end of the mounting portion (23). The rail portion (24) has a thickness dimension substantially equal to that of the ring (3) on both sides in the lateral direction. The transfer step (25) (25) forming a pair with the step (2) is formed so that the ring (3) can be transferred, and the transfer step (2
5) A groove (26) is formed between (25). The transfer steps (25) (25) and their side surfaces (25a) (25)
Hard-chrome plating is applied to a) so that the ring (3) can be slipped well during transportation. The shaft (1) is held upright by an appropriate means at a position near the outside of the front end (24a) of the rail portion (24) of the transport rail (22).

The rail portion (2) of the transport rail (22)
At a rear position of 4), an assembling plate (27) is arranged so as to be linearly movable back and forth along the transport line in the ring transport direction of the transport rail. Support members (28) (2) that are uprightly held on the substrate (21) at a predetermined interval.
A guide rail (29) is attached and fixed to the lower surface of the front end portion of 8), and the guide rail (29) is arranged above the transport rail (22) held on the transport line and the assembly plate (27). A guide member (30) is fixedly mounted on the upper surface of the assembly plate (27), and the guide member (30) is slidably fitted in a guide rail (29) to hold the assembly plate (27) in a horizontal posture. To do. The transport rail (2
The pushing cylinder (31) is installed in the adjacent parallel position of 2) via the mounting bracket (32), and the rear end of the assembly plate (27) is attached to the tip of the pushing rod (33) via the connecting plate (34). And the assembly plate (27) is moved forward and backward by the projecting / retracting motion of the pushing rod (33). When the assembly plate (27) is at the retracted end position, the front end portion of the assembly plate (27) ( 35) is the transportation rail (2
2) It is arranged so as to face the rear end portion (36) at a predetermined interval.

On the lower surface of the assembling plate (27), a protruding portion (37) which slides and moves along the transfer step portions (25) (25) of the transfer rail (22) is formed, and its front end is formed. As shown in FIG. 7, the portion (35) is provided with a substantially V-shaped guide surface (38) that comes into contact with the outer peripheral surface of the ring (3). As shown in FIG. 6, a mounting body (40) provided with open spaces (39) on the front and bottom surfaces is mounted and fixed on the upper surface of the front end portion (35) of the assembly plate (27), and this mounting body is also fixed. The pressing member (41) is pivotally attached to (40). That is, as shown in FIG. 5, the pressing member (41) has a substantially L-shaped mounting rod (43) projecting from the rear surface of the pressing portion (42) having a U-shaped cross section. The corner portion of the mounting rod portion (43) is rotatably pivotally attached to both side walls of the mounting body (40) via a pivot shaft (44), and the pressing portion (42) is attached to the front end portion of the assembly plate (27). Hold in the front proximity position of (35),
The pressing portion (42) can press the outer peripheral edge of the ring (3).

Recesses (46) and (47) are formed on the surface of the front end of the top wall of the mounting body (40) and the upper surface of the mounting rod (43) of the pressing member (41), and the recesses (46) are formed. (47)
A pressing spring (48), which is an elastic body, is compressed and intervened to constantly urge the pressing portion (42) downward, and the urging force causes the ring (3) to move to the conveying step portion (25) of the conveying rail (22).
Press (25). As shown in FIGS. 5 and 6, a long hole (49) is formed in the center of the front end portion (35) of the assembly plate (27), and the pressing member (41) is inserted through the long hole (49). The bent portion (50) of the attachment rod portion (43) of (1) is made to project below the assembly plate (27) by a predetermined size. The bent portion (5) of the attachment rod portion (43) of the pressing member (41)
0) has a rear corner portion formed on the inclined surface (51) and moves in a state of protruding into the concave groove (26) of the transport rail (22) during the forward movement of the assembly plate (27). .. The assembly plate (2
7) at a position below the front end portion (35) of the substrate (2)
1) A mounting bracket (52) is erected and fixed on the mounting bracket (52), and a cam roller (54) which is a contact member is rotatably mounted on the upper end of the mounting bracket (52) via a pivot (53).
At the retracted end position of the assembly plate (27), the pressing member (4
The inclined surface (51) of the mounting rod portion (43) of (1) contacts the cam roller (54), and the pressing member (41) is pivoted (4).
It is constructed so as to pivot and retract upwards against the urging force of the pressing spring (48) about 4).

A detection sensor (55) is attached to the front end surface of a guide rail (29) located substantially above the middle portion of the transport rail (22), and the detection sensor (55) causes the ring (3) to press the pressing member ( It is detected whether or not it is being pressed by the pressing portion (42) of 41) and being conveyed on the conveying rail (22).

In the above-mentioned supply mechanism (B), reference numeral (61) is a transfer body arranged so as to be horizontally reciprocable in the direction orthogonal to the transfer rail (22) on the transfer line.
1) is a ring cutout part (6) at the tip of the attachment part (62).
3) is provided, and at the front end of the smooth upper surface (64) of the cutout portion (63), cutout concave portions (65) that are open on both sides in the width direction and capable of cutting out the rings (3) one by one are formed. is there. A concave groove (66) that can communicate with the concave groove (26) of the transport rail (22) is formed in a substantially central portion of the cut-out concave portion (65). A guide rail (67) is provided below the transfer body (61), and a guide member (68) mounted and fixed to the lower surface of the transfer body (61) is slidably fitted into the guide rail (67). The transfer cylinder (70) is mounted on the base plate (21) through the mounting bracket (69) at a position parallel to the side of the transfer body (61), and the connecting plate (72) is attached to the tip of the transfer rod (71). Transfer body (6
The rear end of the mounting portion (62) of 1) is attached to the transfer body (61).
Are moved forward and backward along the guide rail (67) by the projecting and retracting operation of the transfer rod (71).

Further, as shown in FIGS. 3 and 4, on the above-mentioned substrate (21), rings (3) are stacked and housed in a multi-tiered manner through a mounting member (73), and a supply having a substantially C-shaped cross section is provided. The cylinder (74) is attached in a cantilevered manner and is held upright on the upper surface (64) of the cutout portion (63) of the transfer body (61). A slit-shaped opening (75) is formed in the longitudinal direction of the peripheral wall of the supply cylinder (74).
5), a positioning member (76) having a convex cross section, which is interposed between both ends (3a) (3a) of the ring (3), is attached,
Align the ring (3) in the same direction. Then, at the forward end position of the transfer body (61), the cutout recess (65) is formed.
Between the rear end (36) of the transport rail (22) and the front end (35) of the assembly plate (27) located at the retracted end, and in the movement path of the assembly plate (27). Is positioned and is connected and held on the same plane as the transfer steps (25) and (25) of the transfer rail (22), and when the transfer body (61) is at the retracted end position, the cutout recess (65) is provided with the supply cylinder (74). ), The ring (3) at the lowermost stage among the rings stacked and accommodated in the supply cylinder (74) in multiple stages is cut out to form the recess (65).
Is configured to be housed in. The transfer body (6
At the forward end position of 1), the rings (3) stacked and accommodated in the supply cylinder (74) in multiple stages are held on the rear upper surface (64) of the cutout portion (63) of the transfer body (61).

Next, the operating procedure of the present invention will be described.
The assembly plate and the transfer body are positioned at the retracted end, and the shaft is held upright at a position closer to the front end of the transport rail.

At the retracted end position of the assembly plate (27), as shown in FIG. 6, the bent portion (50) of the mounting rod portion (43) of the pressing member (41) contacts the cam roller (54), The pressing member (41) is pivotally retracted upward about the pivot shaft (44) against the biasing force of the pressing spring (48). Then, a large number of rings (3) are attached to the supply cylinder (74).
When the layers are stored in multiple layers, the lowermost ring (3) among the stacked rings (3) is transferred to the transfer body (61).
It is held in the cutout recess (65). Then, when the protruding transfer rod (71) of the transfer cylinder (70) is retracted, the transfer body (61) is guided by the guide rail (68) to move forward, and the cutout concave portion (65) of the transfer body (61) moves. It is located between the rear end (36) of the (22) and the front end (35) of the assembly plate (27), and is flush with the transfer steps (25) and (25) of the transfer rail (22). Held connected,
A ring (3) is cut out. This ring (3)
At the time of cutting, the ring (3) stacked and accommodated in the supply cylinder (74) has the upper surface (6) of the cutting portion (63) of the transfer body (61).
4) Stacked on top.

Thereafter, the pushing rod (33) protruding from the pushing cylinder (31) is retracted. Then, the assembling plate (27) is guided by the guide rails (29) and moves forward, and the front end guide surface (38) of the assembling plate (27) is moved to the ring (3) on the cutout recess (65) of the transfer body (61). ), And at the same time, the pressing rod (41) has a mounting rod (4).
The bent portion (50) of 3) separates from the cam roller (54). When the bent portion (50) of the pressing member (41) separates from the cam roller (54), the pressing member (41)
Is caused by the urging force of the pressing spring (48) to pivot (44)
With the fulcrum as a fulcrum, the outer peripheral edge portion of the ring (3) is pressed by the lower surface of the pressing portion (42), and the ring (3) is elastic in the cutout concave portion (65) of the transfer body (61). Be forced on. Even after the ring (3) is pressed by the pressing member (41), the assembly plate (27) moves forward, and by this forward movement, the ring (3) causes the cutout recess (65) of the transfer body (61). From the transfer rail (22) to the transfer step (25) (25). At this time, since the cutout concave portion (65) and the transfer step portions (25) and (25) are connected and held on the same surface, the ring (3) is smoothly transferred to the transfer step portions (25) and (25). It

The ring (3) transferred onto the transfer steps (25) (25) is pressed by the assembly plate (27) and transferred forward on the transfer steps (25) (25). To be done. During this conveyance, the ring (3) is elastically pressed by the pressing portion (42) of the pressing member (41),
Moreover, in order to reduce the frictional resistance, the transfer step (25) (2
5) and its side surfaces (25a) (25a) are plated with hard chrome, even if they contact the side surfaces (25a) (25a) of the transfer step portions (25) (25) of the transfer rail (22). ， There is no displacement in the circumferential direction. At this time, the pressing member (4) protruding downward from the assembly plate (27)
The tip of the bent portion (50) of (1) passes through the cutout portion (63) of the transfer body (61) and the recessed grooves (26) (66) of the transport rail (22). The assembly plate (2
Due to the forward movement of 7), both end portions (3) of the ring (3) are
a) (3a) abuts against a predetermined shaft portion of the shaft (1) from a direction orthogonal to the axial direction of the shaft (1) and is expanded by the shaft portion, and then the ring (3) is The bearing (2) mounted on the shaft (1) is fixed by fitting the shaft portion by elastic restoring force. During the forward movement of the assembly plate (27), the detection sensor (5
5) is detected.

When the assembling of the ring (3) to the shaft (1) is completed, the assembling plate (27) moves backward and returns to the original retracted end position, and then the transfer body (61) moves backward. To the original position, is held at a position immediately below the supply cylinder (74), and the lowermost ring (3) of the rings (3) stacked and accommodated in the supply cylinder (74) is the transfer body. It is positioned and held in the cutout recess (65) of (61). The sequential ring (3) is mounted on the shaft (1) in the same manner as described below.

[0025]

According to the present invention, since the ring conveyed on the conveying rail is elastically pressed against the conveying rail by the pressing member, even if the ring comes into contact with the side surface of the conveying rail, There is no displacement in the circumferential direction,
The ring can be securely attached to the shaft. Moreover, since it is only necessary to elastically press the ring by the pressing member, the structure is simple, the manufacturing is easy, and the cost is low.

[Brief description of drawings]

FIG. 1 is a partially omitted front view showing an embodiment of an assembling mechanism of an assembling apparatus according to the present invention.

FIG. 2 is a schematic plan view of the device of the present invention.

FIG. 3 is a partial cross-sectional side view of the device of the present invention with some parts omitted.

FIG. 4 is a partial sectional front view of the supply mechanism.

FIG. 5 is an enlarged plan view of a partially omitted assembly mechanism.

FIG. 6 is an enlarged sectional front view of the assembly mechanism.

FIG. 7 is a bottom view of the tip of the assembly plate.

FIG. 8 is a partial cross-sectional explanatory view showing a state in which a bearing is fixed to a shaft by a ring.

FIG. 9 is a plan view of a ring.

FIG. 10 is a schematic plan view of a conventional ring assembly device.

FIG. 11 is a partial cross-sectional explanatory view showing a procedure for assembling a ring by a conventional assembling device.

FIG. 12 is an enlarged plan view of an essential part for explaining a problem of the conventional assembling apparatus.

[Explanation of symbols]

 3 Ring 22 Conveyor Rail 27 Assembly Plate 35 Front End 41 Pushing Member 42 Pushing Part 54 Hitting Member

Claims (1)

[Claims] 1. A transport rail in which a substantially C-shaped ring is transportable on a transport line, and an assembly plate disposed so as to be linearly reciprocally movable back and forth along the transport rail. A pressing member that is rotatably attached to the front end of the attaching plate and that has a substantially U-shaped pressing portion that can press the ring against the conveying rail by the urging force of the elastic body; A contact member that is disposed in the movement path and that at the time of the retracted end position of the assembling plate, a part of the pressing member collides with the pressing member to rotate and retract upward against the biasing force of the elastic body. Ring assembly device consisting of.