JPS6316933A - Device for automatic circlip insertion - Google Patents

Abstract

PURPOSE:To enable the smooth insertion of a circlip by providing a member for pushing the circlip on a cylindrical guide member toward the clip coupling groove of a shaft with said guide member connected to the shaft. CONSTITUTION:A shaft retaining device 2 holds a shaft 1 having a groove 1a for coupling a circlip 37 around the external surface thereof. A cylindrical guide member 27 is so arranged on the axial line of the shaft 1 as to be capable of connection to the end of the shaft 1 with the front end thereof held on the shaft retaining device 2. A circlip takeout device 36 supplies the circlip 37 to the rear part of the inclination of a flat upper guide member 26 vertically positioned in a manner striding over the upper edge 26c of said inclination. A clip pushout member 19 is actuated for advance along the external surface of the cylindrical guide member 27 and has a front end for coupling to the circlip 37 on said member 27 in the course of advance.

Description

DETAILED DESCRIPTION OF THE INVENTION A0 OBJECTS OF THE INVENTION (11) INDUSTRIAL APPLICATION FIELD The present invention relates to a device for fitting a circlip into a large lug fitting groove formed on the outer peripheral surface of a shaft.

(2) Prior Art Conventionally, circlips have been used in various shafts to regulate the axial position of a member attached to the shaft. For example, in the axle of a two-wheeled vehicle, a circlip is fitted into a clip fitting groove formed on the outer peripheral surface of the axle in order to regulate the position of the hair ring.

Conventionally, it has been common for an operator to manually fit the circlip into the clip-fitting groove of the shaft.

(3) Problems to be solved by the invention However, the work of inserting the circlip into the clip insertion groove is a simple work, and using valuable personnel for such a simple work is a waste of human resources. There is a problem from the viewpoint of effective utilization of the It is an object of the present invention to automatically fit a circlip into a clip fitting groove formed on a surface.

B1 Structure of the Invention (1) Means for Solving the Problems In order to achieve the above object, the automatic circlip insertion device of the present invention includes: A clip insertion groove into which the circlip is inserted is formed on one circumferential surface of the circlip. a shaft holding device that holds the shaft in a predetermined position; a cylindrical guide member having a rear portion having a diameter smaller than the inner diameter of the clip, and a cylindrical guide member disposed along the axis of the shaft so that the front end surface can be joined to the end surface of the shaft held by the shaft holding device; a flat guide member having an inclined upper edge disposed vertically at the rear of the guide member and inclined downwardly to the front and connected to the rear end-L surface of the cylindrical guide member; a circlip removal device for supplying a circlip to the rear of the inclined upper edge of the flat plate-shaped guide member in a posture straddling the inclined upper edge; A clip pushing member having a front end surface that engages with a circlip on the cylindrical guide member when the clip pushing member moves forward.

(2) Operation Next, the operation of the automatic circlip insertion device of the present invention having the above-mentioned configuration will be explained.

First, the shaft is held in place by the shaft holding device.

Next, the circlip supplied to the rear of the inclined upper edge of the vertically arranged flat guide member by the clip take-out device in a posture straddling this inclined upper edge is moved forward by the action of gravity. It slides down the sloped upper edge. The →>-clip is supported by the diameter-reduced rear portion of the cylindrical guide member. Next, the clip take-out device is advanced to advance the circlip on the cylindrical guide member with its front end surface, but before the circlip reaches the front end surface of the cylindrical guide member, The front end surface of the cylindrical guide member and the end surface of the shaft are joined together. The front end surface of the cylindrical guide member and the end surface of the shaft may be joined at any stage before the circlip advanced by the crimp extrusion member reaches the front end surface of the cylindrical guide member. For example, the front end surface of the cylindrical guide member may be joined to the end surface of the shaft by advancing the cylindrical guide member at the same time as the clip pushing member is advanced. The end surface of the shaft and the front end surface of the cylindrical guide member A may be joined together when the shaft is held in place.

As mentioned above, the circlip, which is advanced on the cylindrical guide member by the front end surface of the clip pushing member, advances on the outer circumferential surface of the shaft via the junction between the front end surface of the cylindrical guide member and the shaft end surface. do. Then, when the shaft is advanced to the position of the clip insertion groove formed on the outer circumferential surface of the shaft,
Insert the clip into the groove.

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

As clearly shown in FIGS. 1 and 5, the shaft 1 has a large diameter portion 1b and a small diameter end IC in which a clip fitting groove 1a is formed on the outer circumferential surface. A shaft holding device 2 that holds the shaft 1 in a predetermined position includes a support base 3 having a shaft support portion formed on the upper surface, and a shaft end face support disposed on one end surface of the shaft 1 supported on the support base 3. It consists of 4 parts. The width of the support base 3 is smaller than the length of the shaft 1. Therefore, both ends of the shaft 1 supported by the support stand 3 protrude to the sides of the support stand 3.

A shaft supply device 5 is disposed adjacent to the shaft holding device 2. The shaft 41 (feeding device 5) is equipped with a pair of inclined rails 6. The inclined rails 6 are formed in a U-shape in cross section and are arranged so that the four parts of the U-shape face each other. Both ends of the shaft 1 are supported on the four opposing inclined rails 6 in a movable manner.Furthermore, as shown in FIG. That is, the lower end portion is disposed adjacent to the upper surface of the support base 3. Therefore, the shaft 1 supplied to the upper end portion (the right end portion in FIG. 5) of the inclined rail 6 runs on the inclined rail 6 until the lower end It rolls toward the upper surface of the support base 3 and is supplied to the upper surface of the support base 3. Near the lower end of the inclined rail 6, as shown in FIG. Two control F-stops 7.8 are disposed along the longitudinal direction of the inclined rail 6.The restraining stops 7.8 are arranged between the pair of (lower inclined rails 6.6) and from the inclined rail 6. Also, a restraining stop 7.8 is arranged above.
The distance between them is set to be approximately the same as the outer diameter of the shaft 1. The restraining stops 7.8 are then adapted to control the rolling of the shaft 1 when they are positioned downward from three sides. Therefore, for example, if a large number of shirts 1 to 1 are supplied onto the inclined rail 6 with the lower end side restraint stopper 7 in the lowered position and the upper end side restraint l-stopper 8 in the raised position, these shafts 1 are all stopped by the controlist sopa7. When the upper end side restraint stopper 8 is lowered in this state, the restraint stopper 8 is inserted between the 1st shaft 1 from the bottom and the 2nd shaft 1. The shaft 1 is stopped by the stopper 7, and the second and subsequent shafts 1 from the bottom are stopped by the stopper 8.If the stopper 7 is raised in this state, the shafts shown in FIG. As shown in the figure, only the first shirt I-1 from the bottom is supplied to the surface of the support stand 3-1, and the second and subsequent shirts from the bottom are stopped by the restraining stopper 8. Next, when the control stopper 7 is lowered and the control stopper 8 is raised, the shaft 1 of the inclined rail 6-1-
All return to the state where they are stopped by the stopper 7, that is, to the initial state. In this way, the shaft feeding device 5
is adapted to supply the shafts 1 one by one to the support table 3-1- surface.

Further, a shaft feeding device 9 is disposed adjacent to the shaft holding device 2. Shaft feeding device 9
is equipped with a pair of parallel bars 1 (1, 1[). The central portions of these pair of bars 10.10 are connected by a connecting plate 11. A pair of brackets 12, 12 are attached to the lower surface of the center of the connecting plate 11 to connect the bar 10.1.
A horizontal axis 13 perpendicular to the direction of extension of 0 is supported. A cylinder device 14 that is vertically expandable and retractable is disposed below the center of the connecting plate 11. One end connecting portion 14 of the cylinder device 14. The horizontal shaft 13 is loosely fitted into the interlocking interlocking hole 1ffi provided in a. Therefore, the lower surface of the center of the connecting plate 11 and the two end connecting portions 14a of the cylinder device 14 are connected to the bars to, t.
They are connected rotatably around a horizontal axis 13 that is perpendicular to the extending direction of H and can be moved relative to each other with some play.

The end of the bar 10.10 on the side closer to the shaft holding device 2, that is, the carry-in end (right end in FIG. 5) 1
0a and 10a are support stands 3 with eyes on both sides of the support stand 3.
It is located slightly lower than the top surface of the The other end of the bar 10.10, that is, the conveying end (fifth
In the figure, the left end (Job, IOb) is inclined downward and its lower surface is connected to the cylinder 15. The cylinder 15 is rotatably supported by a horizontal shaft 16. Therefore, when the cylinder device 14 is extended,
The bar 10.10 is arranged around the horizontal axis 16 in the direction of arrow A (the fifth
(see figure) and rotates the loading end 1 of the bar 10.10.
0a and 10a are increased by -1-. bar 1
When the maximum side ends 10a and 10a of 0.10 are upper bounded, the shell-filled (jl, 1J ends 10a and lOa are the support base 3
Connect the upper shaft 1 to the bar 10. It is designed to be taken out at 10J-. The shaft 1 taken out onto the bar 10.10 rolls on the bar 10°10 and the conveying side ends 10b, 10b
From there, it is sent off for the next work process.

On the other hand, a guide rail 17 (see FIGS. 2 and 4) parallel to the shaft 1 held on the support base 3 is arranged on the floor. A guide 18 is slidably supported on this guy 1 rule 17. This guide 1
The clip extrusion member 19 coupled to the extrusion member body 19 has an extrusion member body 19a in its outer shape.
The flange 9a is attached to the flange of the guide 18 with a screw 20.
are integrally connected. This extrusion member main body 19a
The longitudinal direction of the guide rail 17 is parallel to the extending direction of the guide rail 17. The front end (first
A front end shaping member 19b is provided at the right end in FIGS. Further, a circular hole 19c having a circular cross section is formed in the clip extrusion member 19 along its longitudinal direction.

As shown in FIG. 2, the circular hole 19c is formed so that its axis lies on an extension line of the axis of the shaft 1 held on the upper surface of the support base 3. Also, is the inner diameter of the circular hole 19C suitable for fitting the clip of the shaft 1? #1
It is formed in a size that allows it to slidably fit into the outer circumferential surface of the large diameter portion 1b having a diameter of a. The end of the circular hole 19c facing the shaft 1 (the right end in FIGS. 2 and 3), that is, the front end of the circular hole 19c opens through the front end shaping portion +Ji9b with a length of 1ffiL. However, the rear end of the circular hole 19C communicates with the first part through a small diameter through hole 19e provided in the rear end wall 19d.

A vertical slit 19f extending back and forth is provided in the front end wall of the clip extrusion member main body 19a having the circular hole 19c.
(See Figure 2) is formed.

The slit 19f is formed between the top surface and the front end surface of the clip push-out member 19 in the circular hole 19c1. Also,
A pin sliding groove 19g (see FIG. 3) is formed in one of the side walls of the front end of the clip push-out member 19 in a horizontal recess 1 extending back and forth.

A piston 21 is slidably fitted inside the circular hole 19c. The outer diameter of the piston 21 is approximately the same as the outer diameter of the large diameter portion 1b of the shaft 1. A front end surface of a piston rod 22 is coupled to the center of the rear end surface of the piston 21, and the rear end portion of the piston rod 22 extends outward from the clip pushing member 19 through the through hole 19e. are doing. A stopper 2 is provided at the rear end of the outwardly extending piston rod 22.
3 are combined. Further, a compression spring 24 is disposed between the rear end surface of the piston 21 and the rear end wall 19d. The piston 21 is always urged forward by the compression spring 24. A locking pin 25 is provided on the outer peripheral surface of the piston 21 (see Figure 3).
has been planted. The locking pin 25 is slidably engaged with the locking pin sliding groove 19g. Therefore, the piston 21 is slidable within the circular hole 19c of the clip pusher member 19, but is not rotatable. The piston 21, which is urged forward by the compression spring 24, has a recess 11 implanted in the piston 21, a recess 11 in which the pin 25 rotates, and a pin sliding groove 1.
9g's front end wall abutting position (position shown in Figure 3)
is maintained.

A vertical flat guide member 26 whose center is located at i\1 is coupled to the front end surface of the pin 21. As shown in FIG. 2, the lower edge of the flat guide member 26 of the
It is arranged at the same height as the lower surface of the piston 21 or slightly above it.

Further, the upper edge 26a of the flat guide member 26 is connected to the piston 2.
horizontal, 1-edge 26b disposed above the top surface of 1;
It has a sloped upper edge 26C that slopes downward in the 111 direction from the front end (right end in FIG. 2) of the horizontal edge 26b.

A rear-end truncated conical portion 27a, which constitutes the rear portion of the cylindrical guide member 27, is coupled to the front end of the vertical flat guide member 26. The cylindrical guide member 27 has a truncated conical portion 27 on the rear end side.
a and a front end side cylindrical portion 27b having an outer circumferential surface that smoothly connects to the front end of the outer circumferential surface thereof. The rear end side truncated conical portion 27b has a conical surface whose diameter decreases toward the rear, and the diameter of the rear end surface is smaller than the inner diameter of a circlip, which will be described later. The front ends of the two inclined edges 26C of the flat guide member 26 are connected to the rear upper surface of the rear end side truncated conical part 27a. The outer diameter of the front end side cylindrical portion 27b is set to be equal to or larger than the diameter of the outer circumferential surface of the large diameter portion 1b of the shaft 1 in which the clip fitting groove 1a is formed. Further, a fitting recess 27C is formed on the front end surface of the front end side cylindrical portion 27b, into which the small diameter end 1G of the shaft 1 is not fitted.
In the state in which the small diameter end 1b of the shaft 1 is fitted into C, the outer peripheral surface of the front end side cylindrical part 27b of the cylindrical guide member 27 and the large diameter part 1 of the shaft 1 in which the clip fitting groove 1a is formed are connected.
B is flush with the outer circumferential surface.

As clearly shown in FIGS. 3 and 4, an extrusion drive cylinder device 28 is disposed on one side of the clip extrusion member 19. As shown in FIGS.

The axis of this extrusion drive cylinder device 28 is arranged parallel to the guide rail 17. The front end (third
In the figure, the right end) is the connecting bracket 29 and the bolt 3.
The clip push-out member 19 is integrally connected to the clip push-out member 19 via a suitable connection means such as 0 or the like. Therefore, the extrusion drive cylinder device 28 is extended and the piston rod 28a is
When the clip push-out member 19, screw I/N 21, flat guide portion A26, and cylindrical guide member 27 move forward, the clip push-out member 19, the screw I/N 21, the flat guide portion A26, and the cylindrical guide member 27 initially move as one to the right in FIGS. 2 and 3. It has become. Then, the cylindrical guide member 27
The fitting recess 27c fits into the small diameter end IC of the shaft 1, and the front end surface of the cylindrical guide member 27 fits into the large diameter part 1b of the shaft 1.
It is designed to come into contact with the end face of the When the front end surface of the cylindrical guide member 27 and the end surface of the large diameter portion 1b are in contact with each other, as can be seen from FIG.
2. Movement to the right is prevented by the piston 21, the flat guide member 26, the cylindrical guide member 27, the shirt I-1, and the shaft end support member 4. When the piston rod 28a is further advanced, the clip push-out portion 419 moves to the right in FIG. 2 while compressing the compression spring 24.

At this time, the slit 19f of the clip push-out member 19 moves while slidingly contacting the flat guide member 26, and the locking pin sliding groove 19g (see FIG. 3) moves slidingly contacting the locking pin 25. It is supposed to move. Further, the circular hole 19c of the clip pushing member 19 moves to the right while slidingly contacting the cylindrical guide member 27 and the outer peripheral surface of the large diameter portion 1b of the shaft 1, and the front end shaping member 19
The front end surface of b reaches the clip fitting groove 1a of the shaft 1-I-.

A support member 31 is disposed on both sides of the clip extrusion member 19, on the side opposite to the side on which the extrusion drive cylinder 28 is disposed (the right side in FIG. 4).

The support member 31 includes a lower support plate 32 fixed to the floor, vertical support members 33 and 34 erected on the lower support plate 32 so as to form a T-shape in plan cross section (see FIG. 3), and these vertical support members 33 and 34. An upper support plate 35 is fixed to one end of the -1 end of the vertical support part +4'33. This support member 31 is a part +4 for supporting the circlip removal device 36. The circlip removal device M36 is a device for supplying the circlip 37 to the two slanted edges 26C of the flat guide member 26 in such a manner that it straddles the slanted upper edge 26c. Note that this circlip 37 has an opening 37a. The circlip removal device 36 includes a horizontal support plate 38 that is fixedly supported by a portion of the support plate 35 at the − of the support member 31 . The horizontal support plate 38 is
An extending portion protruding from the -L portion support plate 35 is arranged above the clip push-out member 19. A groove 38a (FIG. 4) is formed on the upper surface of the horizontal support plate 38 along the clip push-out member 19. Concave groove 38
The depth of a is approximately the same as the thickness of the circlip 37, and the width of the recess/#38a is slightly larger than the width of the circlip 37. A vertical slit 38b is formed at the front end of the horizontal support plate 38 along the center line of the groove 38a. This slit 38b is for fitting the upper end of the flat guide member 26. Then, the clip extrusion member 19 is moved to the 1ji retracted position (the position where the clip extrusion member 19 is held when the extrusion drive cylinder 28 is contracted, that is,
When the guide member 26 is in the position shown in FIGS. 1 to 3, the upper end of the flat guide member 26 is fitted into the slit 38b.

The height of the bottom surface of the groove 38a is set to be the same as or slightly higher than the height of the horizontal upper edge 26b of the flat guide member 26. Therefore, when the upper end of the flat guide member 26 is fitted into the slit 38b, the horizontal edge 26b
does not protrude above the bottom surface of the recess/#38a. Further, the rear end portion of the groove 38aI7) is formed wider than its front portion, and a mounting bracket, which will be described later, is fixedly supported in the wide portion.

The three vertical support plates arranged perpendicularly to the longitudinal direction of the groove 38a at the front end of the horizontal support plate 38 have a pair of horizontal leg parts 39a, 39a (first
．． (see Figure 7).

The horizontal leg portions 39a, 39a are fixed to two surfaces of the horizontal support plate 38 using bolts 40.

A reinforcing plate 41 is fixed to the rear surface of the vertical support plate 39 by suitable fixing means such as welding. This reinforcing plate 41
A vertical guy 1' plate 42 is fixed to the rear surface of the vertical guy 1'. The vertical guide plate 42 is disposed on one side of the center line of the groove 38a, and a vertical guide 1 is provided at the rear end of the vertical guide plate 42.
A tube 43 is connected. These vertical guide plates 42
The lengths of the vertical guide tubes 43 are the same, and their upper and lower end surfaces coincide with each other. these'
Around the vertical guide plate 42 and the vertical guide cylinder 43,
A large number of circlips 37 are held in a stacked manner in the vertical direction. The lowermost stacked circlip 37 is supported on the bottom surface of the recess '/4438a. Further, a gap slightly larger than the thickness of the circlip 37 is provided between the lower end surfaces of the vertical guide handle 42 and the vertical guide tube 43 and the bottom surface of the groove 38a. Therefore, the circlip 37 placed horizontally on the bottom surface of the groove 38a can pass through the gap.

A mounting bracket 44 is fixedly supported on the wide part of the rear end of the horizontal support plate 38, that is, the rear end of the concave/#38a, and a mounting bracket 44 is fixedly supported on the rear end of the horizontal support plate 38, that is, the wide part of the rear end of the recess/#38a. 45 is fixedly supported parallel to the center line of the groove 38a.
The rear end of a slider 47 is connected to the tip of the piston 45a of the AW45 via a vertical connection member 46 (see FIGS. 2 and 6). The slider 47 is formed into a plate shape, and its thickness is slightly smaller than the thickness of the circlip 37. Further, the slider 47 is disposed so as to be slidable back and forth along the bottom surface of the groove 38a. The front end of the slider 47 is
In FIG. 1, both side portions are formed so as to protrude more forward than the central portion (ie, in an rVJ shape).

On both sides of the groove 38a on which the slider 47 slides, there are slide holders 4 for preventing the slider 47 from lifting up.
8.48 is installed.

The circlip extraction device 36 is constituted by the components indicated by the above-mentioned numerals 38 to 48.

Next, the operation of the embodiment of the present invention having the above-described configuration will be described with reference to FIGS. 6 to 12.

First, the shaft 1 is held on the support base 3-h of the shaft holding device 2, and a large number of circlips 37 are held in a stacked manner around the vertical guide plate 42 and the vertical guide tube 43 of the circlip extractor 36. I'll keep it. At this time, the opening of the circlip 37 is directed forward.

Next, as shown in FIG. 6, when the ejecting cylinder device 45 of the circlip ejecting device ff36 is extended and the slider 47 is moved forward, the distal end surface of the slider 47 touches the circlip 37 held in the laminated form. protrude the bottom one forward.

The circlip 37 projected forward first moves horizontally on the bottom surface of the groove 38a of the horizontal support plate 38. and,
Is circlip 37 concave? When the circlip 37 protrudes further forward than the front end of the circlip 38a, the front end of the circlip 37 tilts downward due to the gravity of the circlip 37.

At this time, the opening 37a of the circlip 37 changes from a horizontal position to a position straddling the -1-edge 26a of the flat guide member 26. With such a change in attitude, the circlip 37 moves toward the vertical flat guide member 2.
The inclined J-edge 2 passes through the upper surface of the horizontal upper edge 26b of 6.
It is supplied to the rear end portion of the blade 6c in such a manner that it straddles the inclined upper edge portion 26C (see FIG. 6). In this way, the circlip 37 that is supplied to the inclined-1 edge 26c in a position that straddles it slides over the inclined upper edge 26c, which slopes downwardly forward, due to the action of gravity. The circlip 37 is supported on the diameter-reduced rear portion of the cylindrical guide member 27, that is, on the rear end side of the rear end-side truncated conical portion 27a, in such a manner that it straddles this (see FIG. 8). At this time, the extrusion drive cylinder 28 is in the retracted position, and the piston 21 in the clip extrusion member 19 is in the position shown in FIG. The position of the piston 21 in FIG.
This is the position where it comes into contact with the front end surface of g. Next, the extrusion drive cylinder 28 is extended and the piston rod 28a is
advance (in the direction of arrow B in Figure 10).

), initially the clip pushing member 19 and the piston 21 move forward together with the piston rod 28a. When the piston 21 moves forward, the flat guide member 26 and the cylindrical guide member 27 integrally connected thereto also move forward. When the clip pushing member 19 and the piston 21 move forward in this manner, the state shown in FIG. 11 is achieved.

The state shown in FIG. 11 is the fitting recess 27C of the cylindrical guide member 27.
The small diameter end IC of the shaft 1 is fitted into the end face of the cylindrical guide member 27 and the clip fitting groove 1 of the shaft 1.
The end surfaces of the large diameter portion 1b formed with the shape a are abutted, and the outer circumferential surface of the front end side cylindrical portion 27b of the cylindrical guide member 27 and the outer circumferential surface of the large diameter portion 1b of the shaft 1 are in contact with each other. . In this state, the detent pin 25 remains in contact with the front end surface of the detent pin sliding groove 19g. When the extrusion drive cylinder 28 is further extended to move the piston 21 forward, the piston 21, the flat guide member 26, and the cylindrical guide member 27 are stopped by the shaft 1 and the shaft front end support member 4, but the clip The pushing member 19 further advances while compressing the compression spring 24 disposed between the rear end 119d and the piston 21. At this time, the front end surface of the rotation centering pin sliding groove 19g moves forward away from the rotation stopper pin 25.

The clip extrusion member 19 has its circular hole 19c.
The circlip moves forward while slidingly contacting the cylindrical guide member 27 and the outer circumferential surface of the large diameter portion 1b of the shaft 1. At this time, the front end surface of the clip push-out portion +419 pushes the circlip 37 forward. The circlip 37, which is advanced on the cylindrical guide member 27 by the front end surface of the clip pushing member]9, passes through the junction point between the front end surface of the cylindrical guide member 27 and the end surface of the large diameter portion 1b of the shaft 1. the outer circumferential surface of the shut 1. Then, it is fitted into a clip fitting groove 1a formed on the outer peripheral surface of the large diameter portion 1b of the shaft 1.

Next, when the extrusion drive cylinder 28 is contracted and the pin rod 28a is retreated, the piston 21, the flat guide member 26, and the cylindrical guide member 27 remain stationary, while the front end side cylindrical portion 27b and the compression spring 24 are expanded. , the clip pushing member 19 retreats. At this time, the front end surface of the anti-rotation bottle sliding groove 19g of the clip push-out member 19 also retreats.

Then, the front end surface of the detent pin sliding groove 19g comes into contact with the detent pin 25. After that, piston rond 28a
When the clip push-out member 19 and the detent pin 25 in contact with the front end surface of the detent pin sliding groove 19g are further retreated, both the clip pushing member 19 and the detent pin 25 that are in contact with the front end surface of the detent pin sliding groove 19g are retracted. As the rotation stop pin 25 moves back, the piston 21 with the rotation stop pin 25 implanted therein
, and the flat guide member 26, cylindrical guide member 27, etc. integrally connected to the piston 21 also retreat. and the third
Return to the original state indicated in the cabinet.

Next, the shaft 1 into which the circlip 37 remaining on the support stand 3 is fitted is conveyed to the next step by the shaft delivery device M9.

Then, another shaft 1 in which the circlip 37 is not yet fitted is held on the support base 3. and,
The circlip 37 is fitted into the clip fitting groove 1a of the shaft 1 in the same manner as described above.

According to the embodiment of the automatic circlip insertion device described above, the restraining stop 7.8 of the shaft feeding device 5, the cylinder device f 14 of the shaft feeding device 9, the cylinder device 45 for removal of the circlip removal device 36 and the clip push-out member ] By controlling the operation timing of the drive cylinder device 28 that drives the circlip 9 forward and backward, the circlip 37
It is easy to fully automate the insertion work.

Although the embodiments of the present invention have been described in detail above, the present invention is not limited to the embodiments described above, and various design changes can be made without departing from the scope of the invention described in the claims. Is possible.

C6 Effects of the Invention As described above, according to the circlip automatic insertion device of the present invention, the opening of the circlip is used to straddle the inclined edge of the flat guide member. The circlip is fed in such a position that the circlip descends forward along the inclined upper edge under the action of gravity, is supported on the cylindrical guide member and is taken out, and the front end surface of the cylindrical guide member is The circlip can be fitted into the clip fitting groove of the shaft by pushing the circlip on the cylindrical guide member in the direction of the clip fitting groove of the shaft using the clip pushing member while it is joined to the end surface of the shaft. Therefore, the removal of the circlip and the insertion of the circlip into the clip insertion groove of the shaft can be carried out very smoothly and automatically and accurately.

[Brief explanation of drawings]

FIG. 1 is a plan view of an embodiment of an automatic circlip insertion device according to the present invention, and FIG. 2 is a sectional view taken along the line ■-■ in FIG.
Figure 3 is a sectional view taken along line m-rn in Figure 2, and Figure 4 is a cross-sectional view of Figure 1.
A cross-sectional view taken along the line If-IV in the figure, FIG. 6 is an enlarged sectional view of the main part, FIG. 7 is a sectional view taken along the line ■-■ in FIG. 6, and FIG. 8 is a partial view of FIG.
Figure 9 is a view from arrow ■ in Figure 8, and views 10 to 12.
The figures are mainly for explaining the action of the clip pushing member of the same embodiment, and FIG. 10 shows the clip pushing member in the retreated position, and FIG. 11 shows the clip pushing member moving forward to some extent. FIG. 12 is a diagram showing the state in which the vehicle is in the forward position, and FIG. 1...Shaft, 1a...Clip fitting large groove, 2...
- Shaft holding device, 19... clip extrusion member,
26... Flat guide member, 26'c... Inclined upper edge, 27... Cylindrical guide member, 27a... Rear part (rear end side truncated conical part), 36... Circlip removal device, 37
...Circlip

Claims (1)

[Scope of Claims] A shaft holding device (2) for holding a shaft (1) in a predetermined position, the shaft (1) having a clip fitting groove (1a) formed in its outer peripheral surface into which a circlip (37) is fitted; The front part has an outer diameter equal to or larger than the outer diameter of the outer peripheral surface in which the clip fitting groove (1a) is formed, and the diameter decreases toward the rear end, and the rear end has an outer diameter smaller than the inner diameter of the circlip (37). a shaft (1) having a rear part and a front end surface held by the shaft holding device (2);
); a cylindrical guide member (27) disposed on the axis of the shaft (1) so as to be joinable to the end face of the cylindrical guide member (27); a flat guide member (26) having an inclined upper edge (26c) connected to the rear end upper surface of the cylindrical guide member (27); and a flat guide member (26) disposed vertically. a circlip take-out device (36) for supplying a circlip (37) to the rear of the inclined upper edge (26c) in a position straddling the inclined upper edge (26c); A clip push-out member (19) that is driven forward and backward along the outer circumferential surface and has a front end surface that engages with the circlip (37) on the cylindrical guide member (27) when the push-out member (19) moves forward. Automatic circlip insertion device.